57261147 has 16 divisors (see below), whose sum is σ = 78343200. Its totient is φ = 37187072.

The previous prime is 57261143. The next prime is 57261161. The reversal of 57261147 is 74116275.

It is a cyclic number.

It is not a de Polignac number, because 57261147 - 2² = 57261143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57261143) 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, 22483 + ... + 24899.

It is an arithmetic number, because the mean of its divisors is an integer number (4896450).

Almost surely, 2^57261147 is an apocalyptic number.

57261147 is a deficient number, since it is larger than the sum of its proper divisors (21082053).

57261147 is a wasteful number, since it uses less digits than its factorization.

57261147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622.

The product of its digits is 11760, while the sum is 33.

The square root of 57261147 is about 7567.1095538521. The cubic root of 57261147 is about 385.4369514732.

The spelling of 57261147 in words is "fifty-seven million, two hundred sixty-one thousand, one hundred forty-seven".