225547 has 6 divisors (see below), whose sum is σ = 262428. Its totient is φ = 193284.

The previous prime is 225529. The next prime is 225569. The reversal of 225547 is 745522.

225547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-225547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2253 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (43738).

2²²⁵⁵⁴⁷ is an apocalyptic number.

225547 is a deficient number, since it is larger than the sum of its proper divisors (36881).

225547 is an equidigital number, since it uses as much as digits as its factorization.

225547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617 (or 4610 counting only the distinct ones).

The product of its digits is 2800, while the sum is 25.

The square root of 225547 is about 474.9178876395. The cubic root of 225547 is about 60.8712684306.

Subtracting from 225547 its sum of digits (25), we obtain a palindrome (225522).

The spelling of 225547 in words is "two hundred twenty-five thousand, five hundred forty-seven".