225405233 has 8 divisors (see below), whose sum is σ = 227348352. Its totient is φ = 223470576.

The previous prime is 225405223. The next prime is 225405251. The reversal of 225405233 is 332504522.

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

It is a cyclic number.

It is not a de Polignac number, because 225405233 - 2¹⁸ = 225143089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225405203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58616 + ... + 62342.

It is an arithmetic number, because the mean of its divisors is an integer number (28418544).

Almost surely, 2^225405233 is an apocalyptic number.

It is an amenable number.

225405233 is a deficient number, since it is larger than the sum of its proper divisors (1943119).

225405233 is a wasteful number, since it uses less digits than its factorization.

225405233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 225405233 is about 15013.5016901454. The cubic root of 225405233 is about 608.5851226335.

Adding to 225405233 its reverse (332504522), we get a palindrome (557909755).

The spelling of 225405233 in words is "two hundred twenty-five million, four hundred five thousand, two hundred thirty-three".