25980992 has 56 divisors (see below), whose sum is σ = 53681376. Its totient is φ = 12469248.

The previous prime is 25980953. The next prime is 25981001. The reversal of 25980992 is 29908952.

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, 312983 + ... + 313065.

It is an arithmetic number, because the mean of its divisors is an integer number (958596).

Almost surely, 2^25980992 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 25980992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26840688).

25980992 is an abundant number, since it is smaller than the sum of its proper divisors (27700384).

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

25980992 is an equidigital number, since it uses as much as digits as its factorization.

25980992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 25980992 is about 5097.1552850585. The cubic root of 25980992 is about 296.1773954902.

The spelling of 25980992 in words is "twenty-five million, nine hundred eighty thousand, nine hundred ninety-two".