520704988 has 12 divisors (see below), whose sum is σ = 911619520. Its totient is φ = 260242272.

The previous prime is 520704973. The next prime is 520705049. The reversal of 520704988 is 889407025.

It is a super-2 number, since 2×520704988² = 542267369056160288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 16428 + ... + 36211.

Almost surely, 2^520704988 is an apocalyptic number.

It is an amenable number.

520704988 is a deficient number, since it is larger than the sum of its proper divisors (390914532).

520704988 is a wasteful number, since it uses less digits than its factorization.

520704988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55116 (or 55114 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 520704988 is about 22818.9611507623. The cubic root of 520704988 is about 804.5083931784.

The spelling of 520704988 in words is "five hundred twenty million, seven hundred four thousand, nine hundred eighty-eight".