It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-25547 is a prime.
It is a d-powerful number, because it can be written as 29 + 55 + 55 + 47 + 74 .
It is a Duffinian number.
It is a nialpdrome in base 13.
225547 is an apocalyptic number.
25547 is an equidigital number, since it uses as much as digits as its factorization.
25547 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 492.
The square root of 25547 is about 159.8342891873. The cubic root of 25547 is about 29.4518990131.
The spelling of 25547 in words is "twenty-five thousand, five hundred forty-seven".