56887920 has 100 divisors (see below), whose sum is σ = 197602680. Its totient is φ = 15168384.

The previous prime is 56887913. The next prime is 56887939. The reversal of 56887920 is 2978865.

56887920 is a `hidden beast` number, since 568 + 87 + 9 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2091 + ... + 10869.

Almost surely, 2^56887920 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 56887920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98801340).

56887920 is an abundant number, since it is smaller than the sum of its proper divisors (140714760).

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

56887920 is a wasteful number, since it uses less digits than its factorization.

56887920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804 (or 8789 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 56887920 is about 7542.4081035171. The cubic root of 56887920 is about 384.5977019973.

It can be divided in two parts, 568 and 87920, that added together give a palindrome (88488).

The spelling of 56887920 in words is "fifty-six million, eight hundred eighty-seven thousand, nine hundred twenty".