56887188 has 48 divisors (see below), whose sum is σ = 140507136. Its totient is φ = 17876320.

The previous prime is 56887169. The next prime is 56887199. The reversal of 56887188 is 88178865.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56887188.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18145 + ... + 21047.

It is an arithmetic number, because the mean of its divisors is an integer number (2927232).

Almost surely, 2^56887188 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 56887188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70253568).

56887188 is an abundant number, since it is smaller than the sum of its proper divisors (83619948).

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

56887188 is a wasteful number, since it uses less digits than its factorization.

56887188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004 (or 3002 counting only the distinct ones).

The product of its digits is 860160, while the sum is 51.

The square root of 56887188 is about 7542.3595777449. The cubic root of 56887188 is about 384.5960523986.

It can be divided in two parts, 56887 and 188, that added together give a palindrome (57075).

The spelling of 56887188 in words is "fifty-six million, eight hundred eighty-seven thousand, one hundred eighty-eight".