57243171 has 4 divisors (see below), whose sum is σ = 76324232. Its totient is φ = 38162112.

The previous prime is 57243167. The next prime is 57243209. The reversal of 57243171 is 17134275.

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

It is not a de Polignac number, because 57243171 - 2² = 57243167 is a prime.

It is a super-2 number, since 2×57243171² = 6553561252270482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57243101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9540526 + ... + 9540531.

It is an arithmetic number, because the mean of its divisors is an integer number (19081058).

Almost surely, 2^57243171 is an apocalyptic number.

57243171 is a deficient number, since it is larger than the sum of its proper divisors (19081061).

57243171 is a wasteful number, since it uses less digits than its factorization.

57243171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19081060.

The product of its digits is 5880, while the sum is 30.

The square root of 57243171 is about 7565.9216887303. The cubic root of 57243171 is about 385.3966138263.

The spelling of 57243171 in words is "fifty-seven million, two hundred forty-three thousand, one hundred seventy-one".