It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 550 667 is not a prime number.
For example, 550 667 can be divided by 13: 550 667 / 13 = 42 359.
For 550 667 to be a prime number, it would have been required that 550 667 has only two divisors, i.e., itself and 1.
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550 667 is an odd number, because it is not evenly divisible by 2.
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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 550 667 is about 742.069.
Thus, the square root of 550 667 is not an integer, and therefore 550 667 is not a square number.
The square of a number (here 550 667) is the result of the product of this number (550 667) by itself (i.e., 550 667 × 550 667); the square of 550 667 is sometimes called "raising 550 667 to the power 2", or "550 667 squared".
The square of 550 667 is 303 234 144 889 because 550 667 × 550 667 = 550 6672 = 303 234 144 889.
As a consequence, 550 667 is the square root of 303 234 144 889.
The multiples of 550 667 are all integers evenly divisible by 550 667, that is all numbers such that the remainder of the division by 550 667 is zero. There are infinitely many multiples of 550 667. The smallest multiples of 550 667 are: