25998372 has 72 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 7797504.

The previous prime is 25998317. The next prime is 25998407. The reversal of 25998372 is 27389952.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13153 + ... + 14999.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^25998372 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 25998372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36324288).

25998372 is an abundant number, since it is smaller than the sum of its proper divisors (46650204).

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

25998372 is a wasteful number, since it uses less digits than its factorization.

25998372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1892 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 25998372 is about 5098.8598725597. The cubic root of 25998372 is about 296.2434234507.

The spelling of 25998372 in words is "twenty-five million, nine hundred ninety-eight thousand, three hundred seventy-two".