56707128 has 40 divisors (see below), whose sum is σ = 158834280. Its totient is φ = 18902160.

The previous prime is 56707127. The next prime is 56707139. The reversal of 56707128 is 82170765.

56707128 is a `hidden beast` number, since 567 + 0 + 71 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56707092 and 56707101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56707127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 43108 + ... + 44403.

It is an arithmetic number, because the mean of its divisors is an integer number (3970857).

Almost surely, 2^56707128 is an apocalyptic number.

It is an amenable number.

56707128 is an abundant number, since it is smaller than the sum of its proper divisors (102127152).

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

56707128 is a wasteful number, since it uses less digits than its factorization.

56707128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87529 (or 87516 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 56707128 is about 7530.4135344614. The cubic root of 56707128 is about 384.1898475312.

The spelling of 56707128 in words is "fifty-six million, seven hundred seven thousand, one hundred twenty-eight".