25493880 has 64 divisors (see below), whose sum is σ = 80987040. Its totient is φ = 6397952.

The previous prime is 25493869. The next prime is 25493887. The reversal of 25493880 is 8839452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25493887) 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, 4209 + ... + 8288.

Almost surely, 2^25493880 is an apocalyptic number.

25493880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25493880 is an abundant number, since it is smaller than the sum of its proper divisors (55493160).

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

25493880 is a wasteful number, since it uses less digits than its factorization.

25493880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12528 (or 12524 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 25493880 is about 5049.1464625222. The cubic root of 25493880 is about 294.3147168989.

The spelling of 25493880 in words is "twenty-five million, four hundred ninety-three thousand, eight hundred eighty".