56912128 has 108 divisors (see below), whose sum is σ = 142722300. Its totient is φ = 22450176.

The previous prime is 56912117. The next prime is 56912147. The reversal of 56912128 is 82121965.

It can be written as a sum of positive squares in 2 ways, for example, as 24285184 + 32626944 = 4928^2 + 5712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56912093 and 56912102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162898 + ... + 163246.

Almost surely, 2^56912128 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 56912128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71361150).

56912128 is an abundant number, since it is smaller than the sum of its proper divisors (85810172).

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

56912128 is a wasteful number, since it uses less digits than its factorization.

56912128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 371 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 56912128 is about 7544.0127253339. The cubic root of 56912128 is about 384.6522479703.

The spelling of 56912128 in words is "fifty-six million, nine hundred twelve thousand, one hundred twenty-eight".