57515 has 4 divisors (see below), whose sum is σ = 69024. Its totient is φ = 46008.

The previous prime is 57503. The next prime is 57527. The reversal of 57515 is 51575.

57515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57503) and next prime (57527).

It is a cyclic number.

It is not a de Polignac number, because 57515 - 2⁸ = 57259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5747 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (17256).

2⁵⁷⁵¹⁵ is an apocalyptic number.

57515 is a deficient number, since it is larger than the sum of its proper divisors (11509).

57515 is a wasteful number, since it uses less digits than its factorization.

57515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11508.

The product of its digits is 875, while the sum is 23.

The square root of 57515 is about 239.8228512882. The cubic root of 57515 is about 38.6005691344.

The spelling of 57515 in words is "fifty-seven thousand, five hundred fifteen".