25988880 has 40 divisors (see below), whose sum is σ = 80566272. Its totient is φ = 6930304.

The previous prime is 25988849. The next prime is 25988887. The reversal of 25988880 is 8888952.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25988887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53904 + ... + 54383.

Almost surely, 2^25988880 is an apocalyptic number.

25988880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25988880 is an abundant number, since it is smaller than the sum of its proper divisors (54577392).

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

25988880 is a wasteful number, since it uses less digits than its factorization.

25988880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108303 (or 108297 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 48.

The square root of 25988880 is about 5097.9289912669. The cubic root of 25988880 is about 296.2073662588.

The spelling of 25988880 in words is "twenty-five million, nine hundred eighty-eight thousand, eight hundred eighty".