25612704 has 72 divisors (see below), whose sum is σ = 78450372. Its totient is φ = 7879680.

The previous prime is 25612681. The next prime is 25612709. The reversal of 25612704 is 40721652.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 90000 = 5052^2 + 300^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25612709) 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, 324 + ... + 7164.

Almost surely, 2^25612704 is an apocalyptic number.

25612704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25612704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39225186).

25612704 is an abundant number, since it is smaller than the sum of its proper divisors (52837668).

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

25612704 is a wasteful number, since it uses less digits than its factorization.

25612704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870 (or 6859 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25612704 is about 5060.8995247881. The cubic root of 25612704 is about 294.7712638459.

The spelling of 25612704 in words is "twenty-five million, six hundred twelve thousand, seven hundred four".