25508079 has 12 divisors (see below), whose sum is σ = 36891816. Its totient is φ = 16983792.

The previous prime is 25508069. The next prime is 25508083. The reversal of 25508079 is 97080552.

It is not a de Polignac number, because 25508079 - 2⁵ = 25508047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25508069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9249 + ... + 11685.

It is an arithmetic number, because the mean of its divisors is an integer number (3074318).

Almost surely, 2^25508079 is an apocalyptic number.

25508079 is a deficient number, since it is larger than the sum of its proper divisors (11383737).

25508079 is a wasteful number, since it uses less digits than its factorization.

25508079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 25508079 is about 5050.5523460311. The cubic root of 25508079 is about 294.3693469914.

The spelling of 25508079 in words is "twenty-five million, five hundred eight thousand, seventy-nine".