56881608 has 32 divisors (see below), whose sum is σ = 162519360. Its totient is φ = 16251840.

The previous prime is 56881607. The next prime is 56881613. The reversal of 56881608 is 80618865.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 56881608.

It is not an unprimeable number, because it can be changed into a prime (56881607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169123 + ... + 169458.

It is an arithmetic number, because the mean of its divisors is an integer number (5078730).

Almost surely, 2^56881608 is an apocalyptic number.

It is an amenable number.

56881608 is an abundant number, since it is smaller than the sum of its proper divisors (105637752).

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

56881608 is a wasteful number, since it uses less digits than its factorization.

56881608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338597 (or 338593 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 56881608 is about 7541.9896579086. The cubic root of 56881608 is about 384.5834771233.

The spelling of 56881608 in words is "fifty-six million, eight hundred eighty-one thousand, six hundred eight".