57740513 has 2 divisors, whose sum is σ = 57740514. Its totient is φ = 57740512.

The previous prime is 57740509. The next prime is 57740519. The reversal of 57740513 is 31504775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55234624 + 2505889 = 7432^2 + 1583^2 .

It is a cyclic number.

It is not a de Polignac number, because 57740513 - 2² = 57740509 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 57740513.

It is not a weakly prime, because it can be changed into another prime (57740519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28870256 + 28870257.

It is an arithmetic number, because the mean of its divisors is an integer number (28870257).

Almost surely, 2^57740513 is an apocalyptic number.

It is an amenable number.

57740513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57740513 is an equidigital number, since it uses as much as digits as its factorization.

57740513 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 57740513 is about 7598.7178523748. The cubic root of 57740513 is about 386.5095354247.

The spelling of 57740513 in words is "fifty-seven million, seven hundred forty thousand, five hundred thirteen".