56387555886 has 32 divisors (see below), whose sum is σ = 113587776000. Its totient is φ = 18660801024.

The previous prime is 56387555789. The next prime is 56387555909. The reversal of 56387555886 is 68855578365.

56387555886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529051 + ... + 626633.

It is an arithmetic number, because the mean of its divisors is an integer number (3549618000).

Almost surely, 2^56387555886 is an apocalyptic number.

56387555886 is an abundant number, since it is smaller than the sum of its proper divisors (57200220114).

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

56387555886 is a wasteful number, since it uses less digits than its factorization.

56387555886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98280.

The product of its digits is 241920000, while the sum is 66.

The spelling of 56387555886 in words is "fifty-six billion, three hundred eighty-seven million, five hundred fifty-five thousand, eight hundred eighty-six".