57117255 has 16 divisors (see below), whose sum is σ = 98417760. Its totient is φ = 28119168.

The previous prime is 57117227. The next prime is 57117293. The reversal of 57117255 is 55271175.

It is not a de Polignac number, because 57117255 - 2¹¹ = 57115207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146260 + ... + 146649.

It is an arithmetic number, because the mean of its divisors is an integer number (6151110).

Almost surely, 2^57117255 is an apocalyptic number.

57117255 is a deficient number, since it is larger than the sum of its proper divisors (41300505).

57117255 is a wasteful number, since it uses less digits than its factorization.

57117255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292930.

The product of its digits is 12250, while the sum is 33.

The square root of 57117255 is about 7557.5958478871. The cubic root of 57117255 is about 385.1138247805.

The spelling of 57117255 in words is "fifty-seven million, one hundred seventeen thousand, two hundred fifty-five".