56128713 has 24 divisors (see below), whose sum is σ = 81490080. Its totient is φ = 34337280.

The previous prime is 56128703. The next prime is 56128727. The reversal of 56128713 is 31782165.

56128713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56128713 - 2⁴ = 56128697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56128703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34758 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (3395420).

Almost surely, 2^56128713 is an apocalyptic number.

It is an amenable number.

56128713 is a deficient number, since it is larger than the sum of its proper divisors (25361367).

56128713 is a wasteful number, since it uses less digits than its factorization.

56128713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1640 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 56128713 is about 7491.9098366171. The cubic root of 56128713 is about 382.8791302585.

The spelling of 56128713 in words is "fifty-six million, one hundred twenty-eight thousand, seven hundred thirteen".