25331472 has 60 divisors (see below), whose sum is σ = 72559344. Its totient is φ = 8245440.

The previous prime is 25331417. The next prime is 25331477. The reversal of 25331472 is 27413352.

It is not an unprimeable number, because it can be changed into a prime (25331477) 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, 4147 + ... + 8237.

Almost surely, 2^25331472 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 25331472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36279672).

25331472 is an abundant number, since it is smaller than the sum of its proper divisors (47227872).

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

25331472 is a wasteful number, since it uses less digits than its factorization.

25331472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148 (or 4139 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 25331472 is about 5033.0380487336. The cubic root of 25331472 is about 293.6884106882.

It can be divided in two parts, 2533 and 1472, that added together give a triangular number (4005 = T₈₉).

The spelling of 25331472 in words is "twenty-five million, three hundred thirty-one thousand, four hundred seventy-two".