It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 516 463 is not a prime number.
For example, 516 463 can be divided by 241: 516 463 / 241 = 2 143.
For 516 463 to be a prime number, it would have been required that 516 463 has only two divisors, i.e., itself and 1.
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516 463 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 516 463 is about 718.654.
Thus, the square root of 516 463 is not an integer, and therefore 516 463 is not a square number.
The square of a number (here 516 463) is the result of the product of this number (516 463) by itself (i.e., 516 463 × 516 463); the square of 516 463 is sometimes called "raising 516 463 to the power 2", or "516 463 squared".
The square of 516 463 is 266 734 030 369 because 516 463 × 516 463 = 516 4632 = 266 734 030 369.
As a consequence, 516 463 is the square root of 266 734 030 369.
The multiples of 516 463 are all integers evenly divisible by 516 463, that is all numbers such that the remainder of the division by 516 463 is zero. There are infinitely many multiples of 516 463. The smallest multiples of 516 463 are: