25090992 has 60 divisors (see below), whose sum is σ = 72320520. Its totient is φ = 8328960.

The previous prime is 25090987. The next prime is 25090993. The reversal of 25090992 is 29909052.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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

It is not an unprimeable number, because it can be changed into a prime (25090993) 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, 103992 + ... + 104232.

It is an arithmetic number, because the mean of its divisors is an integer number (1205342).

Almost surely, 2^25090992 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 25090992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36160260).

25090992 is an abundant number, since it is smaller than the sum of its proper divisors (47229528).

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

25090992 is an equidigital number, since it uses as much as digits as its factorization.

25090992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 25090992 is about 5009.0909354892. The cubic root of 25090992 is about 292.7560939271.

It can be divided in two parts, 250909 and 92, that added together give a square (251001 = 501²).

The spelling of 25090992 in words is "twenty-five million, ninety thousand, nine hundred ninety-two".