It is a happy number.
It is a nialpdrome in base 15.
It is a zygodrome in base 15.
It is a congruent number.
It is an unprimeable number.
225280 is an apocalyptic number.
25280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25280 is an equidigital number, since it uses as much as digits as its factorization.
25280 is an odious number, because the sum of its binary digits is odd.
The square root of 25280 is about 158.9968553148. The cubic root of 25280 is about 29.3489356850.
The spelling of 25280 in words is "twenty-five thousand, two hundred eighty".