25139396 has 48 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 11289600.

The previous prime is 25139383. The next prime is 25139399. The reversal of 25139396 is 69393152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25139399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197885 + ... + 198011.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^25139396 is an apocalyptic number.

It is an amenable number.

25139396 is a deficient number, since it is larger than the sum of its proper divisors (23631676).

25139396 is a wasteful number, since it uses less digits than its factorization.

25139396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 258 counting only the distinct ones).

The product of its digits is 43740, while the sum is 38.

The square root of 25139396 is about 5013.9202227399. The cubic root of 25139396 is about 292.9442286887.

The spelling of 25139396 in words is "twenty-five million, one hundred thirty-nine thousand, three hundred ninety-six".