55977588628 has 72 divisors (see below), whose sum is σ = 108292665600. Its totient is φ = 25167963072.

The previous prime is 55977588619. The next prime is 55977588643. The reversal of 55977588628 is 82688577955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27452433 + ... + 27454471.

It is an arithmetic number, because the mean of its divisors is an integer number (1504064800).

Almost surely, 2^55977588628 is an apocalyptic number.

It is an amenable number.

55977588628 is a deficient number, since it is larger than the sum of its proper divisors (52315076972).

55977588628 is a wasteful number, since it uses less digits than its factorization.

55977588628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389 (or 2340 counting only the distinct ones).

The product of its digits is 338688000, while the sum is 70.

The spelling of 55977588628 in words is "fifty-five billion, nine hundred seventy-seven million, five hundred eighty-eight thousand, six hundred twenty-eight".