225523206 has 48 divisors (see below), whose sum is σ = 508133808. Its totient is φ = 72230400.

The previous prime is 225523189. The next prime is 225523229. The reversal of 225523206 is 602325522.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225523206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47166 + ... + 51726.

It is an arithmetic number, because the mean of its divisors is an integer number (10586121).

Almost surely, 2^225523206 is an apocalyptic number.

225523206 is an abundant number, since it is smaller than the sum of its proper divisors (282610602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225523206 is a wasteful number, since it uses less digits than its factorization.

225523206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677 (or 4674 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 225523206 is about 15017.4300730851. The cubic root of 225523206 is about 608.6912782444.

Adding to 225523206 its reverse (602325522), we get a palindrome (827848728).

The spelling of 225523206 in words is "two hundred twenty-five million, five hundred twenty-three thousand, two hundred six".