225477 has 16 divisors (see below), whose sum is σ = 382080. Its totient is φ = 128736.

The previous prime is 225461. The next prime is 225479. The reversal of 225477 is 774522.

225477 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 225477 - 2⁴ = 225461 is a prime.

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

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 225477.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225477.

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 15 ways as a sum of consecutive naturals, for example, 408 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (23880).

2²²⁵⁴⁷⁷ is an apocalyptic number.

225477 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

225477 is a deficient number, since it is larger than the sum of its proper divisors (156603).

225477 is a wasteful number, since it uses less digits than its factorization.

225477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1203 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 225477 is about 474.8441849702. The cubic root of 225477 is about 60.8649705124.

Adding to 225477 its reverse (774522), we get a palindrome (999999).

The spelling of 225477 in words is "two hundred twenty-five thousand, four hundred seventy-seven".