It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 5 565 613 is not a prime number.
For example, 5 565 613 can be divided by 17: 5 565 613 / 17 = 327 389.
For 5 565 613 to be a prime number, it would have been required that 5 565 613 has only two divisors, i.e., itself and 1.
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5 565 613 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 5 565 613 is about 2 359.155.
Thus, the square root of 5 565 613 is not an integer, and therefore 5 565 613 is not a square number.
The square of a number (here 5 565 613) is the result of the product of this number (5 565 613) by itself (i.e., 5 565 613 × 5 565 613); the square of 5 565 613 is sometimes called "raising 5 565 613 to the power 2", or "5 565 613 squared".
The square of 5 565 613 is 30 976 048 065 769 because 5 565 613 × 5 565 613 = 5 565 6132 = 30 976 048 065 769.
As a consequence, 5 565 613 is the square root of 30 976 048 065 769.
The multiples of 5 565 613 are all integers evenly divisible by 5 565 613, that is all numbers such that the remainder of the division by 5 565 613 is zero. There are infinitely many multiples of 5 565 613. The smallest multiples of 5 565 613 are: