25204992 has 72 divisors (see below), whose sum is σ = 68972736. Its totient is φ = 8165376.

The previous prime is 25204979. The next prime is 25205023. The reversal of 25204992 is 29940252.

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, 27973 + ... + 28859.

Almost surely, 2^25204992 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 25204992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34486368).

25204992 is an abundant number, since it is smaller than the sum of its proper divisors (43767744).

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

25204992 is an equidigital number, since it uses as much as digits as its factorization.

25204992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 25204992 is about 5020.4573496844. The cubic root of 25204992 is about 293.1987996479.

The spelling of 25204992 in words is "twenty-five million, two hundred four thousand, nine hundred ninety-two".