225449 has 12 divisors (see below), whose sum is σ = 270864. Its totient is φ = 186984.

The previous prime is 225431. The next prime is 225457. The reversal of 225449 is 944522.

225449 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-225449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (225479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2054 + ... + 2160.

It is an arithmetic number, because the mean of its divisors is an integer number (22572).

2²²⁵⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

225449 is a deficient number, since it is larger than the sum of its proper divisors (45415).

225449 is a wasteful number, since it uses less digits than its factorization.

225449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 157 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 225449 is about 474.8147006991. The cubic root of 225449 is about 60.8624509801.

It can be divided in two parts, 225 and 449, that multiplied together give a triangular number (101025 = T₄₄₉).

The spelling of 225449 in words is "two hundred twenty-five thousand, four hundred forty-nine".