56231573988 has 12 divisors (see below), whose sum is σ = 131207006000. Its totient is φ = 18743857992.

The previous prime is 56231573987. The next prime is 56231574001. The reversal of 56231573988 is 88937513265.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (56231573987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342982238 + ... + 2342982261.

Almost surely, 2^56231573988 is an apocalyptic number.

It is an amenable number.

56231573988 is an abundant number, since it is smaller than the sum of its proper divisors (74975432012).

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

56231573988 is a wasteful number, since it uses less digits than its factorization.

56231573988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685964506 (or 4685964504 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 56231573988 in words is "fifty-six billion, two hundred thirty-one million, five hundred seventy-three thousand, nine hundred eighty-eight".