57309113 has 2 divisors, whose sum is σ = 57309114. Its totient is φ = 57309112.

The previous prime is 57309079. The next prime is 57309127. The reversal of 57309113 is 31190375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39601849 + 17707264 = 6293^2 + 4208^2 .

It is a cyclic number.

It is not a de Polignac number, because 57309113 - 2²⁰ = 56260537 is a prime.

It is not a weakly prime, because it can be changed into another prime (57309143) 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, 28654556 + 28654557.

It is an arithmetic number, because the mean of its divisors is an integer number (28654557).

Almost surely, 2^57309113 is an apocalyptic number.

It is an amenable number.

57309113 is a deficient number, since it is larger than the sum of its proper divisors (1).

57309113 is an equidigital number, since it uses as much as digits as its factorization.

57309113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 57309113 is about 7570.2782643705. The cubic root of 57309113 is about 385.5445445501.

Adding to 57309113 its reverse (31190375), we get a palindrome (88499488).

The spelling of 57309113 in words is "fifty-seven million, three hundred nine thousand, one hundred thirteen".