57239265 has 16 divisors (see below), whose sum is σ = 91927296. Its totient is φ = 30412800.

The previous prime is 57239261. The next prime is 57239269. The reversal of 57239265 is 56293275.

It is an interprime number because it is at equal distance from previous prime (57239261) and next prime (57239269).

It is not a de Polignac number, because 57239265 - 2² = 57239261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57239261) 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, 2976 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (5745456).

Almost surely, 2^57239265 is an apocalyptic number.

It is an amenable number.

57239265 is a deficient number, since it is larger than the sum of its proper divisors (34688031).

57239265 is a wasteful number, since it uses less digits than its factorization.

57239265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360.

The product of its digits is 113400, while the sum is 39.

The square root of 57239265 is about 7565.6635531855. The cubic root of 57239265 is about 385.3878477535.

The spelling of 57239265 in words is "fifty-seven million, two hundred thirty-nine thousand, two hundred sixty-five".