56517856 has 24 divisors (see below), whose sum is σ = 117127080. Its totient is φ = 26771328.

The previous prime is 56517847. The next prime is 56517871. The reversal of 56517856 is 65871565.

56517856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45871 + ... + 47086.

It is an arithmetic number, because the mean of its divisors is an integer number (4880295).

Almost surely, 2^56517856 is an apocalyptic number.

It is an amenable number.

56517856 is an abundant number, since it is smaller than the sum of its proper divisors (60609224).

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

56517856 is a wasteful number, since it uses less digits than its factorization.

56517856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92986 (or 92978 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 56517856 is about 7517.8358588094. The cubic root of 56517856 is about 383.7619328767.

The spelling of 56517856 in words is "fifty-six million, five hundred seventeen thousand, eight hundred fifty-six".