518890056 has 16 divisors (see below), whose sum is σ = 1297225200. Its totient is φ = 172963344.

The previous prime is 518890049. The next prime is 518890061. The reversal of 518890056 is 650098815.

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, 10810186 + ... + 10810233.

It is an arithmetic number, because the mean of its divisors is an integer number (81076575).

Almost surely, 2^518890056 is an apocalyptic number.

It is an amenable number.

518890056 is an abundant number, since it is smaller than the sum of its proper divisors (778335144).

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

518890056 is a wasteful number, since it uses less digits than its factorization.

518890056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620428 (or 21620424 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 518890056 is about 22779.1583690004. The cubic root of 518890056 is about 803.5725928099.

The spelling of 518890056 in words is "five hundred eighteen million, eight hundred ninety thousand, fifty-six".