57117517 has 8 divisors (see below), whose sum is σ = 58765824. Its totient is φ = 55490448.

The previous prime is 57117509. The next prime is 57117521. The reversal of 57117517 is 71571175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57117517 - 2³ = 57117509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57117527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (7345728).

Almost surely, 2^57117517 is an apocalyptic number.

It is an amenable number.

57117517 is a deficient number, since it is larger than the sum of its proper divisors (1648307).

57117517 is a wasteful number, since it uses less digits than its factorization.

57117517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10619.

The product of its digits is 8575, while the sum is 34.

The square root of 57117517 is about 7557.6131814218. The cubic root of 57117517 is about 385.1144136257.

The spelling of 57117517 in words is "fifty-seven million, one hundred seventeen thousand, five hundred seventeen".