25998080 has 72 divisors (see below), whose sum is σ = 65612400. Its totient is φ = 9842688.

The previous prime is 25998067. The next prime is 25998103. The reversal of 25998080 is 8089952.

It is a happy number.

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, 23786 + ... + 24854.

Almost surely, 2^25998080 is an apocalyptic number.

25998080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32806200).

25998080 is an abundant number, since it is smaller than the sum of its proper divisors (39614320).

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

25998080 is a wasteful number, since it uses less digits than its factorization.

25998080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 25998080 is about 5098.8312386271. The cubic root of 25998080 is about 296.2423143632.

The spelling of 25998080 in words is "twenty-five million, nine hundred ninety-eight thousand, eighty".