56556976 has 30 divisors (see below), whose sum is σ = 127471380. Its totient is φ = 24238368.

The previous prime is 56556961. The next prime is 56557001. The reversal of 56556976 is 67965565.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

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 5 ways as a sum of consecutive naturals, for example, 35286 + ... + 36853.

It is an arithmetic number, because the mean of its divisors is an integer number (4249046).

Almost surely, 2^56556976 is an apocalyptic number.

56556976 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56556976 is an abundant number, since it is smaller than the sum of its proper divisors (70914404).

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

56556976 is a wasteful number, since it uses less digits than its factorization.

56556976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72161 (or 72148 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 49.

The square root of 56556976 is about 7520.4372213323. The cubic root of 56556976 is about 383.8504553686.

The spelling of 56556976 in words is "fifty-six million, five hundred fifty-six thousand, nine hundred seventy-six".