225523233 has 36 divisors (see below), whose sum is σ = 364196352. Its totient is φ = 134278560.

The previous prime is 225523229. The next prime is 225523267. The reversal of 225523233 is 332325522.

It is not a de Polignac number, because 225523233 - 2² = 225523229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225523197 and 225523206.

It is not an unprimeable number, because it can be changed into a prime (225523033) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 44760 + ... + 49542.

Almost surely, 2^225523233 is an apocalyptic number.

It is an amenable number.

225523233 is a deficient number, since it is larger than the sum of its proper divisors (138673119).

225523233 is a wasteful number, since it uses less digits than its factorization.

225523233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4830 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 225523233 is about 15017.4309720405. The cubic root of 225523233 is about 608.6913025355.

Adding to 225523233 its reverse (332325522), we get a palindrome (557848755).

It can be divided in two parts, 22 and 5523233, that added together give a palindrome (5523255).

The spelling of 225523233 in words is "two hundred twenty-five million, five hundred twenty-three thousand, two hundred thirty-three".