25307568 has 120 divisors (see below), whose sum is σ = 83275920. Its totient is φ = 7073280.

The previous prime is 25307531. The next prime is 25307587. The reversal of 25307568 is 86570352.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19978 + ... + 21206.

It is an arithmetic number, because the mean of its divisors is an integer number (693966).

Almost surely, 2^25307568 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 25307568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41637960).

25307568 is an abundant number, since it is smaller than the sum of its proper divisors (57968352).

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

25307568 is a wasteful number, since it uses less digits than its factorization.

25307568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 25307568 is about 5030.6627793960. The cubic root of 25307568 is about 293.5960020937.

The spelling of 25307568 in words is "twenty-five million, three hundred seven thousand, five hundred sixty-eight".