57457513 has 2 divisors, whose sum is σ = 57457514. Its totient is φ = 57457512.

The previous prime is 57457507. The next prime is 57457553. The reversal of 57457513 is 31575475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40043584 + 17413929 = 6328^2 + 4173^2 .

It is a cyclic number.

It is not a de Polignac number, because 57457513 - 2⁵ = 57457481 is a prime.

It is not a weakly prime, because it can be changed into another prime (57457553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28728756 + 28728757.

It is an arithmetic number, because the mean of its divisors is an integer number (28728757).

Almost surely, 2^57457513 is an apocalyptic number.

It is an amenable number.

57457513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57457513 is an equidigital number, since it uses as much as digits as its factorization.

57457513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73500, while the sum is 37.

The square root of 57457513 is about 7580.0734165310. The cubic root of 57457513 is about 385.8770425483.

It can be divided in two parts, 57457 and 513, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 57457513 in words is "fifty-seven million, four hundred fifty-seven thousand, five hundred thirteen".