225991366 has 8 divisors (see below), whose sum is σ = 339164784. Its totient is φ = 112936440.

The previous prime is 225991357. The next prime is 225991379. The reversal of 225991366 is 663199522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24690 + ... + 32581.

It is an arithmetic number, because the mean of its divisors is an integer number (42395598).

Almost surely, 2^225991366 is an apocalyptic number.

225991366 is a deficient number, since it is larger than the sum of its proper divisors (113173418).

225991366 is a wasteful number, since it uses less digits than its factorization.

225991366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59246.

The product of its digits is 174960, while the sum is 43.

The square root of 225991366 is about 15033.0092130618. The cubic root of 225991366 is about 609.1121779473.

The spelling of 225991366 in words is "two hundred twenty-five million, nine hundred ninety-one thousand, three hundred sixty-six".