225436 has 6 divisors (see below), whose sum is σ = 394520. Its totient is φ = 112716.

The previous prime is 225431. The next prime is 225457. The reversal of 225436 is 634522.

It is a happy number.

225436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28176 + ... + 28183.

2²²⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

225436 is a deficient number, since it is larger than the sum of its proper divisors (169084).

225436 is a wasteful number, since it uses less digits than its factorization.

225436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56363 (or 56361 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 225436 is about 474.8010109509. The cubic root of 225436 is about 60.8612811264.

Adding to 225436 its reverse (634522), we get a palindrome (859958).

The spelling of 225436 in words is "two hundred twenty-five thousand, four hundred thirty-six".