225977318 has 20 divisors (see below), whose sum is σ = 395445180. Its totient is φ = 96845364.

The previous prime is 225977293. The next prime is 225977327. The reversal of 225977318 is 813779522.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18728 + ... + 28331.

It is an arithmetic number, because the mean of its divisors is an integer number (19772259).

Almost surely, 2^225977318 is an apocalyptic number.

225977318 is a deficient number, since it is larger than the sum of its proper divisors (169467862).

225977318 is an frugal number, since it uses more digits than its factorization.

225977318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47089 (or 47068 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 225977318 is about 15032.5419673454. The cubic root of 225977318 is about 609.0995565430.

The spelling of 225977318 in words is "two hundred twenty-five million, nine hundred seventy-seven thousand, three hundred eighteen".