25845498 has 48 divisors (see below), whose sum is σ = 65572416. Its totient is φ = 7202880.

The previous prime is 25845439. The next prime is 25845509. The reversal of 25845498 is 89454852.

25845498 is a `hidden beast` number, since 25 + 84 + 549 + 8 = 666.

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, 2665 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (1366092).

Almost surely, 2^25845498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25845498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32786208).

25845498 is an abundant number, since it is smaller than the sum of its proper divisors (39726918).

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

25845498 is a wasteful number, since it uses less digits than its factorization.

25845498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5059 (or 5056 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 25845498 is about 5083.8467718845. The cubic root of 25845498 is about 295.6616309365.

The spelling of 25845498 in words is "twenty-five million, eight hundred forty-five thousand, four hundred ninety-eight".