225565923 has 8 divisors (see below), whose sum is σ = 328095936. Its totient is φ = 136706600.

The previous prime is 225565913. The next prime is 225565931. The reversal of 225565923 is 329565522.

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 225565923 - 2⁶ = 225565859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225565913) 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 7 ways as a sum of consecutive naturals, for example, 3417633 + ... + 3417698.

It is an arithmetic number, because the mean of its divisors is an integer number (41011992).

Almost surely, 2^225565923 is an apocalyptic number.

225565923 is a deficient number, since it is larger than the sum of its proper divisors (102530013).

225565923 is a wasteful number, since it uses less digits than its factorization.

225565923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835345.

The product of its digits is 162000, while the sum is 39.

The square root of 225565923 is about 15018.8522530851. The cubic root of 225565923 is about 608.7297071409.

The spelling of 225565923 in words is "two hundred twenty-five million, five hundred sixty-five thousand, nine hundred twenty-three".