25353472 has 36 divisors (see below), whose sum is σ = 51179716. Its totient is φ = 12533760.

The previous prime is 25353469. The next prime is 25353487. The reversal of 25353472 is 27435352.

It can be written as a sum of positive squares in 2 ways, for example, as 13075456 + 12278016 = 3616^2 + 3504^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24322 + ... + 25342.

Almost surely, 2^25353472 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 25353472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25589858).

25353472 is an abundant number, since it is smaller than the sum of its proper divisors (25826244).

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

25353472 is an equidigital number, since it uses as much as digits as its factorization.

25353472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1120 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 25353472 is about 5035.2231330895. The cubic root of 25353472 is about 293.7734073999.

The spelling of 25353472 in words is "twenty-five million, three hundred fifty-three thousand, four hundred seventy-two".