57513913 has 2 divisors, whose sum is σ = 57513914. Its totient is φ = 57513912.

The previous prime is 57513901. The next prime is 57513923. The reversal of 57513913 is 31931575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52301824 + 5212089 = 7232^2 + 2283^2 .

It is a cyclic number.

It is not a de Polignac number, because 57513913 - 2⁵ = 57513881 is a prime.

It is not a weakly prime, because it can be changed into another prime (57513923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756956 + 28756957.

It is an arithmetic number, because the mean of its divisors is an integer number (28756957).

Almost surely, 2^57513913 is an apocalyptic number.

It is an amenable number.

57513913 is a deficient number, since it is larger than the sum of its proper divisors (1).

57513913 is an equidigital number, since it uses as much as digits as its factorization.

57513913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14175, while the sum is 34.

The square root of 57513913 is about 7583.7927846164. The cubic root of 57513913 is about 386.0032595678.

The spelling of 57513913 in words is "fifty-seven million, five hundred thirteen thousand, nine hundred thirteen".