56641128 has 32 divisors (see below), whose sum is σ = 149056800. Its totient is φ = 17886528.

The previous prime is 56641099. The next prime is 56641129. The reversal of 56641128 is 82114665.

It is a super-2 number, since 2×56641128² = 6416434762224768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56641129) 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, 61651 + ... + 62562.

It is an arithmetic number, because the mean of its divisors is an integer number (4658025).

Almost surely, 2^56641128 is an apocalyptic number.

It is an amenable number.

56641128 is an abundant number, since it is smaller than the sum of its proper divisors (92415672).

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

56641128 is a wasteful number, since it uses less digits than its factorization.

56641128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124241 (or 124237 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 56641128 is about 7526.0300291721. The cubic root of 56641128 is about 384.0407400352.

The spelling of 56641128 in words is "fifty-six million, six hundred forty-one thousand, one hundred twenty-eight".