25904732 has 48 divisors (see below), whose sum is σ = 53760000. Its totient is φ = 10915632.

The previous prime is 25904731. The next prime is 25904737. The reversal of 25904732 is 23740952.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25904731) 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, 108269 + ... + 108507.

It is an arithmetic number, because the mean of its divisors is an integer number (1120000).

Almost surely, 2^25904732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25904732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26880000).

25904732 is an abundant number, since it is smaller than the sum of its proper divisors (27855268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25904732 is a wasteful number, since it uses less digits than its factorization.

25904732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 25904732 is about 5089.6691444533. The cubic root of 25904732 is about 295.8873292874.

The spelling of 25904732 in words is "twenty-five million, nine hundred four thousand, seven hundred thirty-two".