57157327 has 2 divisors, whose sum is σ = 57157328. Its totient is φ = 57157326.

The previous prime is 57157307. The next prime is 57157333. The reversal of 57157327 is 72375175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57157327 - 2¹¹ = 57155279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57157307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28578663 + 28578664.

It is an arithmetic number, because the mean of its divisors is an integer number (28578664).

Almost surely, 2^57157327 is an apocalyptic number.

57157327 is a deficient number, since it is larger than the sum of its proper divisors (1).

57157327 is an equidigital number, since it uses as much as digits as its factorization.

57157327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51450, while the sum is 37.

The square root of 57157327 is about 7560.2464906906. The cubic root of 57157327 is about 385.2038657183.

The spelling of 57157327 in words is "fifty-seven million, one hundred fifty-seven thousand, three hundred twenty-seven".