225455 has 8 divisors (see below), whose sum is σ = 274992. Its totient is φ = 177408.

The previous prime is 225431. The next prime is 225457. The reversal of 225455 is 554522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225455 - 2¹⁴ = 209071 is a prime.

It is a d-powerful number, because it can be written as 2² + 2¹⁷ + 4 + 5⁴ + 5⁶ + 5⁷ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225455.

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 225455.

It is not an unprimeable number, because it can be changed into a prime (225457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (34374).

2²²⁵⁴⁵⁵ is an apocalyptic number.

225455 is a deficient number, since it is larger than the sum of its proper divisors (49537).

225455 is an equidigital number, since it uses as much as digits as its factorization.

225455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 2000, while the sum is 23.

The square root of 225455 is about 474.8210189113. The cubic root of 225455 is about 60.8629908975.

Adding to 225455 its reverse (554522), we get a palindrome (779977).

The spelling of 225455 in words is "two hundred twenty-five thousand, four hundred fifty-five".