25565115 has 16 divisors (see below), whose sum is σ = 41303808. Its totient is φ = 13501536.

The previous prime is 25565101. The next prime is 25565143. The reversal of 25565115 is 51156552.

It is not a de Polignac number, because 25565115 - 2²³ = 17176507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6729 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (2581488).

Almost surely, 2^25565115 is an apocalyptic number.

25565115 is a deficient number, since it is larger than the sum of its proper divisors (15738693).

25565115 is a wasteful number, since it uses less digits than its factorization.

25565115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16658.

The product of its digits is 7500, while the sum is 30.

The square root of 25565115 is about 5056.1957042820. The cubic root of 25565115 is about 294.5885867040.

The spelling of 25565115 in words is "twenty-five million, five hundred sixty-five thousand, one hundred fifteen".