56558431580 has 48 divisors (see below), whose sum is σ = 135758030016. Its totient is φ = 19388920320.

The previous prime is 56558431577. The next prime is 56558431591. The reversal of 56558431580 is 8513485565.

56558431580 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, 1271882 + ... + 1315598.

It is an arithmetic number, because the mean of its divisors is an integer number (2828292292).

Almost surely, 2^56558431580 is an apocalyptic number.

It is an amenable number.

56558431580 is an abundant number, since it is smaller than the sum of its proper divisors (79199598436).

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

56558431580 is a wasteful number, since it uses less digits than its factorization.

56558431580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52974 (or 52972 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 50.

The spelling of 56558431580 in words is "fifty-six billion, five hundred fifty-eight million, four hundred thirty-one thousand, five hundred eighty".