56635568 has 80 divisors (see below), whose sum is σ = 132420096. Its totient is φ = 23147520.

The previous prime is 56635559. The next prime is 56635571. The reversal of 56635568 is 86553665.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68405 + ... + 69227.

Almost surely, 2^56635568 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 56635568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66210048).

56635568 is an abundant number, since it is smaller than the sum of its proper divisors (75784528).

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

56635568 is a wasteful number, since it uses less digits than its factorization.

56635568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 876 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The square root of 56635568 is about 7525.6606354525. The cubic root of 56635568 is about 384.0281735695.

The spelling of 56635568 in words is "fifty-six million, six hundred thirty-five thousand, five hundred sixty-eight".