57171 has 16 divisors (see below), whose sum is σ = 86400. Its totient is φ = 33408.

The previous prime is 57163. The next prime is 57173. The reversal of 57171 is 17175.

It is not a de Polignac number, because 57171 - 2³ = 57163 is a prime.

57171 is a modest number, since divided by 171 gives 57 as remainder.

It is not an unprimeable number, because it can be changed into a prime (57173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940 + ... + 998.

It is an arithmetic number, because the mean of its divisors is an integer number (5400).

2⁵⁷¹⁷¹ is an apocalyptic number.

57171 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

57171 is a deficient number, since it is larger than the sum of its proper divisors (29229).

57171 is a wasteful number, since it uses less digits than its factorization.

57171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98.

The product of its digits is 245, while the sum is 21.

The square root of 57171 is about 239.1045796299. The cubic root of 57171 is about 38.5234579031.

The spelling of 57171 in words is "fifty-seven thousand, one hundred seventy-one".