25707232 has 24 divisors (see below), whose sum is σ = 51256800. Its totient is φ = 12689664.

The previous prime is 25707211. The next prime is 25707239. The reversal of 25707232 is 23270752.

It is a self number, because there is not a number n which added to its sum of digits gives 25707232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25707239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557 + ... + 7612.

It is an arithmetic number, because the mean of its divisors is an integer number (2135700).

Almost surely, 2^25707232 is an apocalyptic number.

It is an amenable number.

25707232 is a deficient number, since it is larger than the sum of its proper divisors (25549568).

25707232 is a wasteful number, since it uses less digits than its factorization.

25707232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258 (or 10250 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 25707232 is about 5070.2299750603. The cubic root of 25707232 is about 295.1334529773.

Adding to 25707232 its reverse (23270752), we get a palindrome (48977984).

The spelling of 25707232 in words is "twenty-five million, seven hundred seven thousand, two hundred thirty-two".