56560720 has 80 divisors (see below), whose sum is σ = 139991040. Its totient is φ = 21192192.

The previous prime is 56560661. The next prime is 56560723. The reversal of 56560720 is 2706565.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56560723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192894 + ... + 193186.

It is an arithmetic number, because the mean of its divisors is an integer number (1749888).

Almost surely, 2^56560720 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 56560720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69995520).

56560720 is an abundant number, since it is smaller than the sum of its proper divisors (83430320).

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

56560720 is a wasteful number, since it uses less digits than its factorization.

56560720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 56560720 is about 7520.6861389105. The cubic root of 56560720 is about 383.8589253193.

The spelling of 56560720 in words is "fifty-six million, five hundred sixty thousand, seven hundred twenty".