520981008 has 20 divisors (see below), whose sum is σ = 1345867728. Its totient is φ = 173660320.

The previous prime is 520980983. The next prime is 520981061. The reversal of 520981008 is 800189025.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 520981008.

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, 5426838 + ... + 5426933.

Almost surely, 2^520981008 is an apocalyptic number.

It is an amenable number.

520981008 is an abundant number, since it is smaller than the sum of its proper divisors (824886720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520981008 is a wasteful number, since it uses less digits than its factorization.

520981008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853782 (or 10853776 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 520981008 is about 22825.0083899218. The cubic root of 520981008 is about 804.6505217579.

The spelling of 520981008 in words is "five hundred twenty million, nine hundred eighty-one thousand, eight".