56885816 has 32 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 26071680.

The previous prime is 56885813. The next prime is 56885821. The reversal of 56885816 is 61858865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56885813) 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, 13661 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (3614625).

Almost surely, 2^56885816 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 56885816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57834000).

56885816 is an abundant number, since it is smaller than the sum of its proper divisors (58782184).

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

56885816 is a wasteful number, since it uses less digits than its factorization.

56885816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839 (or 3835 counting only the distinct ones).

The product of its digits is 460800, while the sum is 47.

The square root of 56885816 is about 7542.2686242271. The cubic root of 56885816 is about 384.5929604896.

The spelling of 56885816 in words is "fifty-six million, eight hundred eighty-five thousand, eight hundred sixteen".