25231608 has 64 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 8354016.

The previous prime is 25231603. The next prime is 25231631. The reversal of 25231608 is 80613252.

25231608 is a `hidden beast` number, since 2 + 52 + 3 + 1 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42691 + ... + 43277.

It is an arithmetic number, because the mean of its divisors is an integer number (1102500).

Almost surely, 2^25231608 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 25231608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35280000).

25231608 is an abundant number, since it is smaller than the sum of its proper divisors (45328392).

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

25231608 is a wasteful number, since it uses less digits than its factorization.

25231608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25231608 is about 5023.1074047844. The cubic root of 25231608 is about 293.3019674910.

The spelling of 25231608 in words is "twenty-five million, two hundred thirty-one thousand, six hundred eight".