25208939 has 8 divisors (see below), whose sum is σ = 28916448. Its totient is φ = 21528000.

The previous prime is 25208933. The next prime is 25208947. The reversal of 25208939 is 93980252.

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

It is a cyclic number.

It is not a de Polignac number, because 25208939 - 2⁴ = 25208923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25208933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4562 + ... + 8439.

It is an arithmetic number, because the mean of its divisors is an integer number (3614556).

Almost surely, 2^25208939 is an apocalyptic number.

25208939 is a deficient number, since it is larger than the sum of its proper divisors (3707509).

25208939 is a wasteful number, since it uses less digits than its factorization.

25208939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13285.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 25208939 is about 5020.8504259737. The cubic root of 25208939 is about 293.2141034319.

The spelling of 25208939 in words is "twenty-five million, two hundred eight thousand, nine hundred thirty-nine".