25981488 has 60 divisors (see below), whose sum is σ = 78310960. Its totient is φ = 7993728.

The previous prime is 25981481. The next prime is 25981489. The reversal of 25981488 is 88418952.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25981481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5068 + ... + 8811.

Almost surely, 2^25981488 is an apocalyptic number.

It is an amenable number.

25981488 is an abundant number, since it is smaller than the sum of its proper divisors (52329472).

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

25981488 is a wasteful number, since it uses less digits than its factorization.

25981488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906 (or 13897 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 25981488 is about 5097.2039394162. The cubic root of 25981488 is about 296.1792802406.

The spelling of 25981488 in words is "twenty-five million, nine hundred eighty-one thousand, four hundred eighty-eight".