225478 has 16 divisors (see below), whose sum is σ = 380304. Its totient is φ = 99360.

The previous prime is 225461. The next prime is 225479. The reversal of 225478 is 874522.

225478 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 (225479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676 + ... + 952.

It is an arithmetic number, because the mean of its divisors is an integer number (23769).

2²²⁵⁴⁷⁸ is an apocalyptic number.

225478 is a deficient number, since it is larger than the sum of its proper divisors (154826).

225478 is a wasteful number, since it uses less digits than its factorization.

225478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its digits is 4480, while the sum is 28.

The square root of 225478 is about 474.8452379460. The cubic root of 225478 is about 60.8650604918.

It can be divided in two parts, 2254 and 78, that added together give a palindrome (2332).

The spelling of 225478 in words is "two hundred twenty-five thousand, four hundred seventy-eight".