57513613387 has 2 divisors, whose sum is σ = 57513613388. Its totient is φ = 57513613386.

The previous prime is 57513613379. The next prime is 57513613433. The reversal of 57513613387 is 78331631575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57513613387 - 2³ = 57513613379 is a prime.

It is a super-3 number, since 3×57513613387³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 57513613387.

It is not a weakly prime, because it can be changed into another prime (57513613307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756806693 + 28756806694.

It is an arithmetic number, because the mean of its divisors is an integer number (28756806694).

Almost surely, 2^57513613387 is an apocalyptic number.

57513613387 is a deficient number, since it is larger than the sum of its proper divisors (1).

57513613387 is an equidigital number, since it uses as much as digits as its factorization.

57513613387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 49.

The spelling of 57513613387 in words is "fifty-seven billion, five hundred thirteen million, six hundred thirteen thousand, three hundred eighty-seven".