225723772465 has 16 divisors (see below), whose sum is σ = 286425893376. Its totient is φ = 170491593600.

The previous prime is 225723772447. The next prime is 225723772471. The reversal of 225723772465 is 564277327522.

It is not a de Polignac number, because 225723772465 - 2⁵ = 225723772433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17753187 + ... + 17765896.

It is an arithmetic number, because the mean of its divisors is an integer number (17901618336).

Almost surely, 2^225723772465 is an apocalyptic number.

It is an amenable number.

225723772465 is a deficient number, since it is larger than the sum of its proper divisors (60702120911).

225723772465 is a wasteful number, since it uses less digits than its factorization.

225723772465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35519160.

The product of its digits is 9878400, while the sum is 52.

The spelling of 225723772465 in words is "two hundred twenty-five billion, seven hundred twenty-three million, seven hundred seventy-two thousand, four hundred sixty-five".