520996880 has 40 divisors (see below), whose sum is σ = 1237099392. Its totient is φ = 203963264.

The previous prime is 520996873. The next prime is 520996921. The reversal of 520996880 is 88699025.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 65522 + ... + 73041.

Almost surely, 2^520996880 is an apocalyptic number.

It is an amenable number.

520996880 is an abundant number, since it is smaller than the sum of its proper divisors (716102512).

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

520996880 is a wasteful number, since it uses less digits than its factorization.

520996880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138623 (or 138617 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 520996880 is about 22825.3560760835. The cubic root of 520996880 is about 804.6586930624.

The spelling of 520996880 in words is "five hundred twenty million, nine hundred ninety-six thousand, eight hundred eighty".