25098 has 16 divisors (see below), whose sum is σ = 51840. Its totient is φ = 8096.

The previous prime is 25097. The next prime is 25111. The reversal of 25098 is 89052.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25098.

It is not an unprimeable number, because it can be changed into a prime (25097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238 + ... + 326.

It is an arithmetic number, because the mean of its divisors is an integer number (3240).

2²⁵⁰⁹⁸ is an apocalyptic number.

25098 is an abundant number, since it is smaller than the sum of its proper divisors (26742).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25920).

25098 is a wasteful number, since it uses less digits than its factorization.

25098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 25098 is about 158.4234831078. The cubic root of 25098 is about 29.2783347317.

The spelling of 25098 in words is "twenty-five thousand, ninety-eight".