56082780 has 120 divisors (see below), whose sum is σ = 189538272. Its totient is φ = 13799808.

The previous prime is 56082773. The next prime is 56082791. The reversal of 56082780 is 8728065.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19729 + ... + 22391.

Almost surely, 2^56082780 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 56082780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94769136).

56082780 is an abundant number, since it is smaller than the sum of its proper divisors (133455492).

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

56082780 is a wasteful number, since it uses less digits than its factorization.

56082780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 56082780 is about 7488.8437024684. The cubic root of 56082780 is about 382.7746585557.

The spelling of 56082780 in words is "fifty-six million, eighty-two thousand, seven hundred eighty".