It is a tau number, because it is divible by the number of its divisors (32).
It is a nialpdrome in base 8 and base 13.
It is an unprimeable number.
25728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
225728 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 25728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25728 is an equidigital number, since it uses as much as digits as its factorization.
25728 is an evil number, because the sum of its binary digits is even.
The square root of 25728 is about 160.3995012461. The cubic root of 25728 is about 29.5212907684.
Adding to 25728 its sum of digits (24), we get a palindrome (25752).
The spelling of 25728 in words is "twenty-five thousand, seven hundred twenty-eight".