225939845 has 16 divisors (see below), whose sum is σ = 278657280. Its totient is φ = 175769664.

The previous prime is 225939829. The next prime is 225939853. The reversal of 225939845 is 548939522.

It is a cyclic number.

It is not a de Polignac number, because 225939845 - 2⁴ = 225939829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225939845.

It is a congruent 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, 49187 + ... + 53583.

It is an arithmetic number, because the mean of its divisors is an integer number (17416080).

Almost surely, 2^225939845 is an apocalyptic number.

It is an amenable number.

225939845 is a deficient number, since it is larger than the sum of its proper divisors (52717435).

225939845 is a wasteful number, since it uses less digits than its factorization.

225939845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684.

The product of its digits is 777600, while the sum is 47.

The square root of 225939845 is about 15031.2955196816. The cubic root of 225939845 is about 609.0658864242.

The spelling of 225939845 in words is "two hundred twenty-five million, nine hundred thirty-nine thousand, eight hundred forty-five".