2565315 has 24 divisors (see below), whose sum is σ = 4495920. Its totient is φ = 1353024.

The previous prime is 2565289. The next prime is 2565319. The reversal of 2565315 is 5135652.

2565315 is a `hidden beast` number, since 2 + 5 + 653 + 1 + 5 = 666.

It is not a de Polignac number, because 2565315 - 2¹⁶ = 2499779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4644 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (187330).

2^2565315 is an apocalyptic number.

2565315 is a deficient number, since it is larger than the sum of its proper divisors (1930605).

2565315 is a wasteful number, since it uses less digits than its factorization.

2565315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 640 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 2565315 is about 1601.6600762958. The cubic root of 2565315 is about 136.8926823969.

The spelling of 2565315 in words is "two million, five hundred sixty-five thousand, three hundred fifteen".