56188216 has 16 divisors (see below), whose sum is σ = 120403440. Its totient is φ = 24080640.

The previous prime is 56188207. The next prime is 56188217. The reversal of 56188216 is 61288165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56188217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501625 + ... + 501736.

It is an arithmetic number, because the mean of its divisors is an integer number (7525215).

Almost surely, 2^56188216 is an apocalyptic number.

56188216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56188216 is an abundant number, since it is smaller than the sum of its proper divisors (64215224).

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

56188216 is a wasteful number, since it uses less digits than its factorization.

56188216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003374 (or 1003370 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 56188216 is about 7495.8799350043. The cubic root of 56188216 is about 383.0143813609.

The spelling of 56188216 in words is "fifty-six million, one hundred eighty-eight thousand, two hundred sixteen".