56558255677 has 32 divisors (see below), whose sum is σ = 71787018240. Its totient is φ = 43277474880.

The previous prime is 56558255657. The next prime is 56558255687. The reversal of 56558255677 is 77655285565.

It is a cyclic number.

It is not a de Polignac number, because 56558255677 - 2⁷ = 56558255549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558255617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4523128 + ... + 4535614.

It is an arithmetic number, because the mean of its divisors is an integer number (2243344320).

Almost surely, 2^56558255677 is an apocalyptic number.

It is an amenable number.

56558255677 is a deficient number, since it is larger than the sum of its proper divisors (15228762563).

56558255677 is a wasteful number, since it uses less digits than its factorization.

56558255677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13561.

The product of its digits is 88200000, while the sum is 61.

The spelling of 56558255677 in words is "fifty-six billion, five hundred fifty-eight million, two hundred fifty-five thousand, six hundred seventy-seven".