56837880 has 192 divisors, whose sum is σ = 208465920. Its totient is φ = 13305600.

The previous prime is 56837867. The next prime is 56837881. The reversal of 56837880 is 8873865.

56837880 is a `hidden beast` number, since 568 + 3 + 7 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56837881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122529 + ... + 122991.

It is an arithmetic number, because the mean of its divisors is an integer number (1085760).

Almost surely, 2^56837880 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 56837880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104232960).

56837880 is an abundant number, since it is smaller than the sum of its proper divisors (151628040).

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

56837880 is a wasteful number, since it uses less digits than its factorization.

56837880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 56837880 is about 7539.0901307784. The cubic root of 56837880 is about 384.4849017482.

The spelling of 56837880 in words is "fifty-six million, eight hundred thirty-seven thousand, eight hundred eighty".