57271191 has 8 divisors (see below), whose sum is σ = 76830720. Its totient is φ = 37946232.

The previous prime is 57271171. The next prime is 57271199. The reversal of 57271191 is 19117275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57271191 - 2⁷ = 57271063 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57271199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58071 + ... + 59048.

It is an arithmetic number, because the mean of its divisors is an integer number (9603840).

Almost surely, 2^57271191 is an apocalyptic number.

57271191 is a deficient number, since it is larger than the sum of its proper divisors (19559529).

57271191 is a wasteful number, since it uses less digits than its factorization.

57271191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117285.

The product of its digits is 4410, while the sum is 33.

The square root of 57271191 is about 7567.7731863475. The cubic root of 57271191 is about 385.4594862553.

The spelling of 57271191 in words is "fifty-seven million, two hundred seventy-one thousand, one hundred ninety-one".