56020728 has 32 divisors (see below), whose sum is σ = 140677200. Its totient is φ = 18590208.

The previous prime is 56020703. The next prime is 56020733. The reversal of 56020728 is 82702065.

It is a junction number, because it is equal to n+sod(n) for n = 56020695 and 56020704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 10592.

Almost surely, 2^56020728 is an apocalyptic number.

It is an amenable number.

56020728 is an abundant number, since it is smaller than the sum of its proper divisors (84656472).

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

56020728 is a wasteful number, since it uses less digits than its factorization.

56020728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10431 (or 10427 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56020728 is about 7484.6995931701. The cubic root of 56020728 is about 382.6334345859.

The spelling of 56020728 in words is "fifty-six million, twenty thousand, seven hundred twenty-eight".