520688030 has 16 divisors (see below), whose sum is σ = 977988384. Its totient is φ = 199219680.

The previous prime is 520688017. The next prime is 520688057. The reversal of 520688030 is 30886025.

It is a super-2 number, since 2×520688030² = 542232049170561800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131701 + ... + 1132160.

It is an arithmetic number, because the mean of its divisors is an integer number (61124274).

Almost surely, 2^520688030 is an apocalyptic number.

520688030 is a deficient number, since it is larger than the sum of its proper divisors (457300354).

520688030 is a wasteful number, since it uses less digits than its factorization.

520688030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263891.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 520688030 is about 22818.5895707864. The cubic root of 520688030 is about 804.4996595053.

The spelling of 520688030 in words is "five hundred twenty million, six hundred eighty-eight thousand, thirty".