225369 has 16 divisors (see below), whose sum is σ = 354240. Its totient is φ = 141120.

The previous prime is 225353. The next prime is 225371. The reversal of 225369 is 963522.

225369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225369 - 2⁴ = 225353 is a prime.

It is a super-2 number, since 2×225369² = 101582372322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225369.

It is not an unprimeable number, because it can be changed into a prime (225349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214 + ... + 704.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

2²²⁵³⁶⁹ is an apocalyptic number.

It is an amenable number.

225369 is a deficient number, since it is larger than the sum of its proper divisors (128871).

225369 is a wasteful number, since it uses less digits than its factorization.

225369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 511 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 225369 is about 474.7304498344. The cubic root of 225369 is about 60.8552511669.

The spelling of 225369 in words is "two hundred twenty-five thousand, three hundred sixty-nine".