56528658 has 16 divisors (see below), whose sum is σ = 125619360. Its totient is φ = 18842868.

The previous prime is 56528657. The next prime is 56528671. The reversal of 56528658 is 85682565.

56528658 is a `hidden beast` number, since 565 + 2 + 86 + 5 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (56528657) 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, 523360 + ... + 523467.

It is an arithmetic number, because the mean of its divisors is an integer number (7851210).

Almost surely, 2^56528658 is an apocalyptic number.

56528658 is an abundant number, since it is smaller than the sum of its proper divisors (69090702).

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

56528658 is a wasteful number, since it uses less digits than its factorization.

56528658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046838 (or 1046832 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 56528658 is about 7518.5542493221. The cubic root of 56528658 is about 383.7863802085.

The spelling of 56528658 in words is "fifty-six million, five hundred twenty-eight thousand, six hundred fifty-eight".