56320056 has 128 divisors (see below), whose sum is σ = 174182400. Its totient is φ = 16744320.

The previous prime is 56320051. The next prime is 56320073. The reversal of 56320056 is 65002365.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56320051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86725 + ... + 87371.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^56320056 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 56320056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87091200).

56320056 is an abundant number, since it is smaller than the sum of its proper divisors (117862344).

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

56320056 is a wasteful number, since it uses less digits than its factorization.

56320056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 56320056 is about 7504.6689467291. The cubic root of 56320056 is about 383.3137156102.

The spelling of 56320056 in words is "fifty-six million, three hundred twenty thousand, fifty-six".