57259965 has 32 divisors (see below), whose sum is σ = 105025536. Its totient is φ = 26095680.

The previous prime is 57259963. The next prime is 57259967. The reversal of 57259965 is 56995275.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57259963) and next prime (57259967).

It is not a de Polignac number, because 57259965 - 2¹ = 57259963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57259963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45900 + ... + 47130.

It is an arithmetic number, because the mean of its divisors is an integer number (3282048).

Almost surely, 2^57259965 is an apocalyptic number.

It is an amenable number.

57259965 is a deficient number, since it is larger than the sum of its proper divisors (47765571).

57259965 is a wasteful number, since it uses less digits than its factorization.

57259965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689.

The product of its digits is 850500, while the sum is 48.

The square root of 57259965 is about 7567.0314522936. The cubic root of 57259965 is about 385.4342993572.

The spelling of 57259965 in words is "fifty-seven million, two hundred fifty-nine thousand, nine hundred sixty-five".