25536 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.
It is a tau number, because it is divible by the number of its divisors (56).
It is a nialpdrome in base 14.
It is a zygodrome in base 2.
It is a congruent number.
25536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
225536 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 25536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25536 is a wasteful number, since it uses less digits than its factorization.
25536 is an evil number, because the sum of its binary digits is even.
The square root of 25536 is about 159.7998748435. The cubic root of 25536 is about 29.4476712838.
The spelling of 25536 in words is "twenty-five thousand, five hundred thirty-six".