57704513 has 2 divisors, whose sum is σ = 57704514. Its totient is φ = 57704512.

The previous prime is 57704509. The next prime is 57704527. The reversal of 57704513 is 31540775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57638464 + 66049 = 7592^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 57704513 - 2² = 57704509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57704513.

It is not a weakly prime, because it can be changed into another prime (57704533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28852256 + 28852257.

It is an arithmetic number, because the mean of its divisors is an integer number (28852257).

Almost surely, 2^57704513 is an apocalyptic number.

It is an amenable number.

57704513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57704513 is an equidigital number, since it uses as much as digits as its factorization.

57704513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 57704513 is about 7596.3486623509. The cubic root of 57704513 is about 386.4291918593.

The spelling of 57704513 in words is "fifty-seven million, seven hundred four thousand, five hundred thirteen".