57887513 has 2 divisors, whose sum is σ = 57887514. Its totient is φ = 57887512.

The previous prime is 57887491. The next prime is 57887537. The reversal of 57887513 is 31578875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41306329 + 16581184 = 6427^2 + 4072^2 .

It is a cyclic number.

It is not a de Polignac number, because 57887513 - 2⁸ = 57887257 is a prime.

It is a super-2 number, since 2×57887513² = 6701928322650338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57887213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28943756 + 28943757.

It is an arithmetic number, because the mean of its divisors is an integer number (28943757).

Almost surely, 2^57887513 is an apocalyptic number.

It is an amenable number.

57887513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57887513 is an equidigital number, since it uses as much as digits as its factorization.

57887513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 44.

The square root of 57887513 is about 7608.3843882916. The cubic root of 57887513 is about 386.8372588355.

The spelling of 57887513 in words is "fifty-seven million, eight hundred eighty-seven thousand, five hundred thirteen".