56555712 has 112 divisors (see below), whose sum is σ = 173614080. Its totient is φ = 18019584.

The previous prime is 56555683. The next prime is 56555729. The reversal of 56555712 is 21755565.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39033 + ... + 40455.

Almost surely, 2^56555712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56555712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86807040).

56555712 is an abundant number, since it is smaller than the sum of its proper divisors (117058368).

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

56555712 is a wasteful number, since it uses less digits than its factorization.

56555712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1451 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 56555712 is about 7520.3531831956. The cubic root of 56555712 is about 383.8475957709.

The spelling of 56555712 in words is "fifty-six million, five hundred fifty-five thousand, seven hundred twelve".