57272591 has 4 divisors (see below), whose sum is σ = 57304800. Its totient is φ = 57240384.

The previous prime is 57272549. The next prime is 57272617. The reversal of 57272591 is 19527275.

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

It is a cyclic number.

It is not a de Polignac number, because 57272591 - 2¹⁴ = 57256207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57272191) 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, 13271 + ... + 17048.

It is an arithmetic number, because the mean of its divisors is an integer number (14326200).

Almost surely, 2^57272591 is an apocalyptic number.

57272591 is a deficient number, since it is larger than the sum of its proper divisors (32209).

57272591 is a wasteful number, since it uses less digits than its factorization.

57272591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32208.

The product of its digits is 44100, while the sum is 38.

The square root of 57272591 is about 7567.8656832690. The cubic root of 57272591 is about 385.4626270950.

The spelling of 57272591 in words is "fifty-seven million, two hundred seventy-two thousand, five hundred ninety-one".