56885513 has 2 divisors, whose sum is σ = 56885514. Its totient is φ = 56885512.

The previous prime is 56885503. The next prime is 56885531. The reversal of 56885513 is 31558865.

Together with next prime (56885531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55830784 + 1054729 = 7472^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 56885513 - 2⁴ = 56885497 is a prime.

It is not a weakly prime, because it can be changed into another prime (56885503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28442756 + 28442757.

It is an arithmetic number, because the mean of its divisors is an integer number (28442757).

Almost surely, 2^56885513 is an apocalyptic number.

It is an amenable number.

56885513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56885513 is an equidigital number, since it uses as much as digits as its factorization.

56885513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 41.

The square root of 56885513 is about 7542.2485374058. The cubic root of 56885513 is about 384.5922776487.

The spelling of 56885513 in words is "fifty-six million, eight hundred eighty-five thousand, five hundred thirteen".