115525865 has 24 divisors (see below), whose sum is σ = 171569088. Its totient is φ = 73120320.

The previous prime is 115525847. The next prime is 115525873. The reversal of 115525865 is 568525511.

It is not a de Polignac number, because 115525865 - 2¹⁸ = 115263721 is a prime.

It is a Duffinian number.

It is a Curzon 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, 3851 + ... + 15680.

It is an arithmetic number, because the mean of its divisors is an integer number (7148712).

Almost surely, 2^115525865 is an apocalyptic number.

It is an amenable number.

115525865 is a deficient number, since it is larger than the sum of its proper divisors (56043223).

115525865 is a wasteful number, since it uses less digits than its factorization.

115525865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19569 (or 19556 counting only the distinct ones).

The product of its digits is 60000, while the sum is 38.

The square root of 115525865 is about 10748.2959114457. The cubic root of 115525865 is about 487.0345186472.

The spelling of 115525865 in words is "one hundred fifteen million, five hundred twenty-five thousand, eight hundred sixty-five".