56577731154 has 16 divisors (see below), whose sum is σ = 129320528448. Its totient is φ = 16165066032.

The previous prime is 56577731141. The next prime is 56577731209. The reversal of 56577731154 is 45113777565.

It is a junction number, because it is equal to n+sod(n) for n = 56577731097 and 56577731106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673544377 + ... + 673544460.

It is an arithmetic number, because the mean of its divisors is an integer number (8082533028).

Almost surely, 2^56577731154 is an apocalyptic number.

56577731154 is an abundant number, since it is smaller than the sum of its proper divisors (72742797294).

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

56577731154 is a wasteful number, since it uses less digits than its factorization.

56577731154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347088849.

The product of its digits is 3087000, while the sum is 51.

The spelling of 56577731154 in words is "fifty-six billion, five hundred seventy-seven million, seven hundred thirty-one thousand, one hundred fifty-four".