25104 has 20 divisors (see below), whose sum is σ = 64976. Its totient is φ = 8352.

The previous prime is 25097. The next prime is 25111. The reversal of 25104 is 40152.

It is an interprime number because it is at equal distance from previous prime (25097) and next prime (25111).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 25104.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25104.

It is an unprimeable number.

25104 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214 + ... + 309.

2²⁵¹⁰⁴ is an apocalyptic number.

25104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25104 is an abundant number, since it is smaller than the sum of its proper divisors (39872).

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 (32488).

25104 is a wasteful number, since it uses less digits than its factorization.

25104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25104 is about 158.4424185627. The cubic root of 25104 is about 29.2806676667.

Adding to 25104 its reverse (40152), we get a palindrome (65256).

The spelling of 25104 in words is "twenty-five thousand, one hundred four".