55958856 has 32 divisors (see below), whose sum is σ = 141187200. Its totient is φ = 18480960.

The previous prime is 55958827. The next prime is 55958879. The reversal of 55958856 is 65885955.

It is a junction number, because it is equal to n+sod(n) for n = 55958799 and 55958808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (4412100).

Almost surely, 2^55958856 is an apocalyptic number.

It is an amenable number.

55958856 is an abundant number, since it is smaller than the sum of its proper divisors (85228344).

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

55958856 is a wasteful number, since it uses less digits than its factorization.

55958856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21509 (or 21505 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 51.

The square root of 55958856 is about 7480.5652192866. The cubic root of 55958856 is about 382.4925164070.

The spelling of 55958856 in words is "fifty-five million, nine hundred fifty-eight thousand, eight hundred fifty-six".