25880 has 16 divisors (see below), whose sum is σ = 58320. Its totient is φ = 10336.

The previous prime is 25873. The next prime is 25889. The reversal of 25880 is 8852.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25880.

It is not an unprimeable number, because it can be changed into a prime (25889) by changing a digit.

25880 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, 284 + ... + 363.

It is an arithmetic number, because the mean of its divisors is an integer number (3645).

2²⁵⁸⁸⁰ is an apocalyptic number.

25880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25880 is an abundant number, since it is smaller than the sum of its proper divisors (32440).

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 (29160).

25880 is a wasteful number, since it uses less digits than its factorization.

25880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 25880 is about 160.8726204175. The cubic root of 25880 is about 29.5793135229.

The spelling of 25880 in words is "twenty-five thousand, eight hundred eighty".