57349613 has 2 divisors, whose sum is σ = 57349614. Its totient is φ = 57349612.

The previous prime is 57349561. The next prime is 57349627. The reversal of 57349613 is 31694375.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56580484 + 769129 = 7522^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 57349613 - 2⁶ = 57349549 is a prime.

It is a super-2 number, since 2×57349613² = 6577956222499538, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57349013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28674806 + 28674807.

It is an arithmetic number, because the mean of its divisors is an integer number (28674807).

Almost surely, 2^57349613 is an apocalyptic number.

It is an amenable number.

57349613 is a deficient number, since it is larger than the sum of its proper divisors (1).

57349613 is an equidigital number, since it uses as much as digits as its factorization.

57349613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 57349613 is about 7572.9527266450. The cubic root of 57349613 is about 385.6353438223.

The spelling of 57349613 in words is "fifty-seven million, three hundred forty-nine thousand, six hundred thirteen".