225972923 has 4 divisors (see below), whose sum is σ = 246515928. Its totient is φ = 205429920.

The previous prime is 225972917. The next prime is 225972941. The reversal of 225972923 is 329279522.

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

It is a cyclic number.

It is not a de Polignac number, because 225972923 - 2⁸ = 225972667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225972913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10271486 + ... + 10271507.

It is an arithmetic number, because the mean of its divisors is an integer number (61628982).

Almost surely, 2^225972923 is an apocalyptic number.

225972923 is a deficient number, since it is larger than the sum of its proper divisors (20543005).

225972923 is a wasteful number, since it uses less digits than its factorization.

225972923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20543004.

The product of its digits is 136080, while the sum is 41.

The square root of 225972923 is about 15032.3957837731. The cubic root of 225972923 is about 609.0956077545.

The spelling of 225972923 in words is "two hundred twenty-five million, nine hundred seventy-two thousand, nine hundred twenty-three".