25897365 has 24 divisors (see below), whose sum is σ = 48342840. Its totient is φ = 12749184.

The previous prime is 25897357. The next prime is 25897387. The reversal of 25897365 is 56379852.

It is a happy number.

25897365 is a `hidden beast` number, since 2 + 589 + 7 + 3 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5049009 + 20848356 = 2247^2 + 4566^2 .

It is not a de Polignac number, because 25897365 - 2³ = 25897357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25897365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21550 + ... + 22719.

It is an arithmetic number, because the mean of its divisors is an integer number (2014285).

Almost surely, 2^25897365 is an apocalyptic number.

It is an amenable number.

25897365 is a deficient number, since it is larger than the sum of its proper divisors (22445475).

25897365 is a wasteful number, since it uses less digits than its factorization.

25897365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44293 (or 44290 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 25897365 is about 5088.9453720786. The cubic root of 25897365 is about 295.8592776735.

It can be divided in two parts, 25897 and 365, that added together give a palindrome (26262).

The spelling of 25897365 in words is "twenty-five million, eight hundred ninety-seven thousand, three hundred sixty-five".