25868065 has 4 divisors (see below), whose sum is σ = 31041684. Its totient is φ = 20694448.

The previous prime is 25868041. The next prime is 25868071. The reversal of 25868065 is 56086852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8025889 + 17842176 = 2833^2 + 4224^2 .

It is a cyclic number.

It is not a de Polignac number, because 25868065 - 2¹⁵ = 25835297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586802 + ... + 2586811.

It is an arithmetic number, because the mean of its divisors is an integer number (7760421).

Almost surely, 2^25868065 is an apocalyptic number.

It is an amenable number.

25868065 is a deficient number, since it is larger than the sum of its proper divisors (5173619).

25868065 is an equidigital number, since it uses as much as digits as its factorization.

25868065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173618.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 25868065 is about 5086.0657683518. The cubic root of 25868065 is about 295.7476582339.

The spelling of 25868065 in words is "twenty-five million, eight hundred sixty-eight thousand, sixty-five".