Is 21563 a prime number? What are the divisors of 21563?

## Parity of 21 563

21 563 is an odd number, because it is not evenly divisible by 2.

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## Is 21 563 a perfect square 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 21 563 is about 146.843.

Thus, the square root of 21 563 is not an integer, and therefore 21 563 is not a square number.

Anyway, 21 563 is a prime number, and a prime number cannot be a perfect square.

## What is the square number of 21 563?

The square of a number (here 21 563) is the result of the product of this number (21 563) by itself (i.e., 21 563 × 21 563); the square of 21 563 is sometimes called "raising 21 563 to the power 2", or "21 563 squared".

The square of 21 563 is 464 962 969 because 21 563 × 21 563 = 21 5632 = 464 962 969.

As a consequence, 21 563 is the square root of 464 962 969.

## Number of digits of 21 563

21 563 is a number with 5 digits.

## What are the multiples of 21 563?

The multiples of 21 563 are all integers evenly divisible by 21 563, that is all numbers such that the remainder of the division by 21 563 is zero. There are infinitely many multiples of 21 563. The smallest multiples of 21 563 are:

## Numbers near 21 563

### Nearest numbers from 21 563

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