520325668 has 12 divisors (see below), whose sum is σ = 912866332. Its totient is φ = 259506720.

The previous prime is 520325657. The next prime is 520325719. The reversal of 520325668 is 866523025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126382564 + 393943104 = 11242^2 + 19848^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162243 + ... + 165418.

Almost surely, 2^520325668 is an apocalyptic number.

It is an amenable number.

520325668 is a deficient number, since it is larger than the sum of its proper divisors (392540664).

520325668 is a wasteful number, since it uses less digits than its factorization.

520325668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328062 (or 328060 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 520325668 is about 22810.6481275741. The cubic root of 520325668 is about 804.3129912633.

The spelling of 520325668 in words is "five hundred twenty million, three hundred twenty-five thousand, six hundred sixty-eight".