56689896 has 64 divisors (see below), whose sum is σ = 149817600. Its totient is φ = 17846528.

The previous prime is 56689873. The next prime is 56689907. The reversal of 56689896 is 69898665.

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, 31846 + ... + 33578.

It is an arithmetic number, because the mean of its divisors is an integer number (2340900).

Almost surely, 2^56689896 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 56689896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74908800).

56689896 is an abundant number, since it is smaller than the sum of its proper divisors (93127704).

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

56689896 is a wasteful number, since it uses less digits than its factorization.

56689896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1814 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 56689896 is about 7529.2692872549. The cubic root of 56689896 is about 384.1509280844.

The spelling of 56689896 in words is "fifty-six million, six hundred eighty-nine thousand, eight hundred ninety-six".