25971888 has 40 divisors (see below), whose sum is σ = 67456000. Its totient is φ = 8610624.

The previous prime is 25971887. The next prime is 25971919. The reversal of 25971888 is 88817952.

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 (25971887) 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, 8193 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (1686400).

Almost surely, 2^25971888 is an apocalyptic number.

It is an amenable number.

25971888 is an abundant number, since it is smaller than the sum of its proper divisors (41484112).

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

25971888 is a wasteful number, since it uses less digits than its factorization.

25971888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2923 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The square root of 25971888 is about 5096.2621596617. The cubic root of 25971888 is about 296.1427969393.

The spelling of 25971888 in words is "twenty-five million, nine hundred seventy-one thousand, eight hundred eighty-eight".