56807856 has 180 divisors, whose sum is σ = 189097272. Its totient is φ = 15869952.

The previous prime is 56807843. The next prime is 56807867. The reversal of 56807856 is 65870865.

56807856 is a `hidden beast` number, since 568 + 0 + 7 + 85 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 585600 + ... + 585696.

Almost surely, 2^56807856 is an apocalyptic number.

56807856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56807856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94548636).

56807856 is an abundant number, since it is smaller than the sum of its proper divisors (132289416).

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

56807856 is a wasteful number, since it uses less digits than its factorization.

56807856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 56807856 is about 7537.0986460308. The cubic root of 56807856 is about 384.4171898167.

The spelling of 56807856 in words is "fifty-six million, eight hundred seven thousand, eight hundred fifty-six".