25871232 has 64 divisors (see below), whose sum is σ = 69584400. Its totient is φ = 8515584.

The previous prime is 25871213. The next prime is 25871239. The reversal of 25871232 is 23217852.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 25871232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25871239) 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, 33798 + ... + 34554.

Almost surely, 2^25871232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25871232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34792200).

25871232 is an abundant number, since it is smaller than the sum of its proper divisors (43713168).

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

25871232 is an equidigital number, since it uses as much as digits as its factorization.

25871232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 851 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 25871232 is about 5086.3770996653. The cubic root of 25871232 is about 295.7597270996.

The spelling of 25871232 in words is "twenty-five million, eight hundred seventy-one thousand, two hundred thirty-two".