56801856 has 28 divisors (see below), whose sum is σ = 150288752. Its totient is φ = 18933888.

The previous prime is 56801831. The next prime is 56801861. The reversal of 56801856 is 65810865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147730 + ... + 148113.

Almost surely, 2^56801856 is an apocalyptic number.

It is an amenable number.

56801856 is an abundant number, since it is smaller than the sum of its proper divisors (93486896).

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

56801856 is a wasteful number, since it uses less digits than its factorization.

56801856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295858 (or 295848 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 56801856 is about 7536.7006043759. The cubic root of 56801856 is about 384.4036553956.

Subtracting 56801856 from its reverse (65810865), we obtain a palindrome (9009009).

The spelling of 56801856 in words is "fifty-six million, eight hundred one thousand, eight hundred fifty-six".