225978311223 has 24 divisors (see below), whose sum is σ = 373756892288. Its totient is φ = 128883541392.

The previous prime is 225978311191. The next prime is 225978311239. The reversal of 225978311223 is 322113879522.

225978311223 is a `hidden beast` number, since 2 + 2 + 597 + 8 + 31 + 1 + 2 + 23 = 666.

It is not a de Polignac number, because 225978311223 - 2⁵ = 225978311191 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 (225978311243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3396265 + ... + 3462162.

Almost surely, 2^225978311223 is an apocalyptic number.

225978311223 is a deficient number, since it is larger than the sum of its proper divisors (147778581065).

225978311223 is a wasteful number, since it uses less digits than its factorization.

225978311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6858963 (or 6858960 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 225978311223 in words is "two hundred twenty-five billion, nine hundred seventy-eight million, three hundred eleven thousand, two hundred twenty-three".