25813312 has 56 divisors (see below), whose sum is σ = 59074304. Its totient is φ = 10962432.

The previous prime is 25813301. The next prime is 25813321. The reversal of 25813312 is 21331852.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70153 + ... + 70519.

Almost surely, 2^25813312 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 25813312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29537152).

25813312 is an abundant number, since it is smaller than the sum of its proper divisors (33260992).

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

25813312 is a wasteful number, since it uses less digits than its factorization.

25813312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 533 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 25813312 is about 5080.6802694127. The cubic root of 25813312 is about 295.5388485184.

The spelling of 25813312 in words is "twenty-five million, eight hundred thirteen thousand, three hundred twelve".