Is 55021 a prime number?

55 021 is an odd number, because it is not evenly divisible by 2.

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• What is an even number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 55 021 is about 234.566.

Thus, the square root of 55 021 is not an integer, and therefore 55 021 is not a square number.

Anyway, 55 021 is a prime number, and a prime number cannot be a perfect square.

The square of a number (here 55 021) is the result of the product of this number (55 021) by itself (i.e., 55 021 × 55 021); the square of 55 021 is sometimes called "raising 55 021 to the power 2", or "55 021 squared".

The square of 55 021 is 3 027 310 441 because 55 021 × 55 021 = 55 021² = 3 027 310 441.

As a consequence, 55 021 is the square root of 3 027 310 441.

55 021 is a number with 5 digits.

The multiples of 55 021 are all integers evenly divisible by 55 021, that is all numbers such that the remainder of the division by 55 021 is zero. There are infinitely many multiples of 55 021. The smallest multiples of 55 021 are:

• 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 55 021 too, since 0 × 55 021 = 0
• 55 021: indeed, 55 021 is a multiple of itself, since 55 021 is evenly divisible by 55 021 (we have 55 021 / 55 021 = 1, so the remainder of this division is indeed zero)
• 110 042: indeed, 110 042 = 55 021 × 2
• 165 063: indeed, 165 063 = 55 021 × 3
• 220 084: indeed, 220 084 = 55 021 × 4
• 275 105: indeed, 275 105 = 55 021 × 5
• etc.

• Preceding numbers: …55 019, 55 020
• Following numbers: 55 022, 55 023…

Nearest numbers from 55 021

• Preceding prime number: 55 009
• Following prime number: 55 049

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• 55 021 est-il un nombre premier ?