It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 512 516 is not a prime number.
For example, 512 516 can be divided by 2: 512 516 / 2 = 256 258.
For 512 516 to be a prime number, it would have been required that 512 516 has only two divisors, i.e., itself and 1.
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512 516 is an even number, because it is evenly divisible by 2: 512 516 / 2 = 256 258.
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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 512 516 is about 715.902.
Thus, the square root of 512 516 is not an integer, and therefore 512 516 is not a square number.
The square of a number (here 512 516) is the result of the product of this number (512 516) by itself (i.e., 512 516 × 512 516); the square of 512 516 is sometimes called "raising 512 516 to the power 2", or "512 516 squared".
The square of 512 516 is 262 672 650 256 because 512 516 × 512 516 = 512 5162 = 262 672 650 256.
As a consequence, 512 516 is the square root of 262 672 650 256.
The multiples of 512 516 are all integers evenly divisible by 512 516, that is all numbers such that the remainder of the division by 512 516 is zero. There are infinitely many multiples of 512 516. The smallest multiples of 512 516 are: