57173857 has 8 divisors (see below), whose sum is σ = 61737984. Its totient is φ = 52633488.

The previous prime is 57173849. The next prime is 57173881. The reversal of 57173857 is 75837175.

57173857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57173857 - 2³ = 57173849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57173887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763 + ... + 10720.

It is an arithmetic number, because the mean of its divisors is an integer number (7717248).

Almost surely, 2^57173857 is an apocalyptic number.

It is an amenable number.

57173857 is a deficient number, since it is larger than the sum of its proper divisors (4564127).

57173857 is a wasteful number, since it uses less digits than its factorization.

57173857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879.

The product of its digits is 205800, while the sum is 43.

The square root of 57173857 is about 7561.3396299862. The cubic root of 57173857 is about 385.2409960188.

The spelling of 57173857 in words is "fifty-seven million, one hundred seventy-three thousand, eight hundred fifty-seven".