56156880 has 160 divisors (see below), whose sum is σ = 192487680. Its totient is φ = 13455360.

The previous prime is 56156873. The next prime is 56156897. The reversal of 56156880 is 8865165.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127701 + ... + 128139.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^56156880 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 56156880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96243840).

56156880 is an abundant number, since it is smaller than the sum of its proper divisors (136330800).

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

56156880 is a wasteful number, since it uses less digits than its factorization.

56156880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 503 counting only the distinct ones).

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

The square root of 56156880 is about 7493.7894285868. The cubic root of 56156880 is about 382.9431661288.

The spelling of 56156880 in words is "fifty-six million, one hundred fifty-six thousand, eight hundred eighty".