25512065 has 8 divisors (see below), whose sum is σ = 30660648. Its totient is φ = 20378880.

The previous prime is 25512017. The next prime is 25512077. The reversal of 25512065 is 56021552.

It can be written as a sum of positive squares in 4 ways, for example, as 12902464 + 12609601 = 3592^2 + 3551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25512065 - 2⁸ = 25511809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185 + ... + 7145.

It is an arithmetic number, because the mean of its divisors is an integer number (3832581).

Almost surely, 2^25512065 is an apocalyptic number.

It is an amenable number.

25512065 is a deficient number, since it is larger than the sum of its proper divisors (5148583).

25512065 is an equidigital number, since it uses as much as digits as its factorization.

25512065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 25512065 is about 5050.9469409211. The cubic root of 25512065 is about 294.3846793247.

The spelling of 25512065 in words is "twenty-five million, five hundred twelve thousand, sixty-five".