25205 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a Duffinian number.
25205 is strictly pandigital in base 6.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 25205.
It is a congruent number.
It is an unprimeable number.
225205 is an apocalyptic number.
It is an amenable number.
25205 is an frugal number, since it uses more digits than its factorization.
25205 is an evil number, because the sum of its binary digits is even.
The square root of 25205 is about 158.7608264025. The cubic root of 25205 is about 29.3198830668.
Adding to 25205 its reverse (50252), we get a palindrome (75457).
The spelling of 25205 in words is "twenty-five thousand, two hundred five".