Subtracting from 225543 its sum of digits (21), we obtain a palindrome (225522).
225543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a d-powerful number, because it can be written as 211 + 213 + 57 + 57 + 4 + 310 .
It is a D-number.
It is a Duffinian number.
225543 is a lucky number.
It is a plaindrome in base 11.
It is a nialpdrome in base 12.
It is a congruent number.
2225543 is an apocalyptic number.
225543 is an equidigital number, since it uses as much as digits as its factorization.
225543 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75184.
The square root of 225543 is about 474.9136763666. The cubic root of 225543 is about 60.8709085847.
The spelling of 225543 in words is "two hundred twenty-five thousand, five hundred forty-three".