57872157 has 16 divisors (see below), whose sum is σ = 92828160. Its totient is φ = 31329072.

The previous prime is 57872153. The next prime is 57872173. The reversal of 57872157 is 75127875.

It is not a de Polignac number, because 57872157 - 2² = 57872153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57872153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72123 + ... + 72920.

It is an arithmetic number, because the mean of its divisors is an integer number (5801760).

Almost surely, 2^57872157 is an apocalyptic number.

57872157 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

57872157 is a deficient number, since it is larger than the sum of its proper divisors (34956003).

57872157 is a wasteful number, since it uses less digits than its factorization.

57872157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145072.

The product of its digits is 137200, while the sum is 42.

The square root of 57872157 is about 7607.3751715030. The cubic root of 57872157 is about 386.8030499708.

The spelling of 57872157 in words is "fifty-seven million, eight hundred seventy-two thousand, one hundred fifty-seven".