57140985 has 16 divisors (see below), whose sum is σ = 99737280. Its totient is φ = 27704640.

The previous prime is 57140977. The next prime is 57141011. The reversal of 57140985 is 58904175.

It is not a de Polignac number, because 57140985 - 2³ = 57140977 is a prime.

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, 172990 + ... + 173319.

It is an arithmetic number, because the mean of its divisors is an integer number (6233580).

Almost surely, 2^57140985 is an apocalyptic number.

57140985 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57140985 is a deficient number, since it is larger than the sum of its proper divisors (42596295).

57140985 is a wasteful number, since it uses less digits than its factorization.

57140985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346328.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 57140985 is about 7559.1656285598. The cubic root of 57140985 is about 385.1671506727.

The spelling of 57140985 in words is "fifty-seven million, one hundred forty thousand, nine hundred eighty-five".