225668973 has 8 divisors (see below), whose sum is σ = 300961728. Its totient is φ = 150411104.

The previous prime is 225668969. The next prime is 225668987. The reversal of 225668973 is 379866522.

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 225668973 - 2² = 225668969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225668903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18640 + ... + 28262.

It is an arithmetic number, because the mean of its divisors is an integer number (37620216).

Almost surely, 2^225668973 is an apocalyptic number.

It is an amenable number.

225668973 is a deficient number, since it is larger than the sum of its proper divisors (75292755).

225668973 is an equidigital number, since it uses as much as digits as its factorization.

225668973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17443.

The product of its digits is 1088640, while the sum is 48.

The square root of 225668973 is about 15022.2825495994. The cubic root of 225668973 is about 608.8223926039.

The spelling of 225668973 in words is "two hundred twenty-five million, six hundred sixty-eight thousand, nine hundred seventy-three".