It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 5 520 494 is not a prime number.
For example, 5 520 494 can be divided by 2: 5 520 494 / 2 = 2 760 247.
For 5 520 494 to be a prime number, it would have been required that 5 520 494 has only two divisors, i.e., itself and 1.
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5 520 494 is an even number, because it is evenly divisible by 2: 5 520 494 / 2 = 2 760 247.
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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 5 520 494 is about 2 349.573.
Thus, the square root of 5 520 494 is not an integer, and therefore 5 520 494 is not a square number.
The square of a number (here 5 520 494) is the result of the product of this number (5 520 494) by itself (i.e., 5 520 494 × 5 520 494); the square of 5 520 494 is sometimes called "raising 5 520 494 to the power 2", or "5 520 494 squared".
The square of 5 520 494 is 30 475 854 004 036 because 5 520 494 × 5 520 494 = 5 520 4942 = 30 475 854 004 036.
As a consequence, 5 520 494 is the square root of 30 475 854 004 036.
The multiples of 5 520 494 are all integers evenly divisible by 5 520 494, that is all numbers such that the remainder of the division by 5 520 494 is zero. There are infinitely many multiples of 5 520 494. The smallest multiples of 5 520 494 are: