225654973 has 4 divisors (see below), whose sum is σ = 229912668. Its totient is φ = 221397280.

The previous prime is 225654959. The next prime is 225655051. The reversal of 225654973 is 379456522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 176836804 + 48818169 = 13298^2 + 6987^2 .

It is a cyclic number.

It is not a de Polignac number, because 225654973 - 2⁵ = 225654941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225654953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128768 + ... + 2128873.

It is an arithmetic number, because the mean of its divisors is an integer number (57478167).

Almost surely, 2^225654973 is an apocalyptic number.

It is an amenable number.

225654973 is a deficient number, since it is larger than the sum of its proper divisors (4257695).

225654973 is an equidigital number, since it uses as much as digits as its factorization.

225654973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257694.

The product of its digits is 453600, while the sum is 43.

The square root of 225654973 is about 15021.8165679122. The cubic root of 225654973 is about 608.8098023489.

The spelling of 225654973 in words is "two hundred twenty-five million, six hundred fifty-four thousand, nine hundred seventy-three".