225453213 has 12 divisors (see below), whose sum is σ = 337716288. Its totient is φ = 150301980.

The previous prime is 225453211. The next prime is 225453229. The reversal of 225453213 is 312354522.

It is a happy number.

It is not a de Polignac number, because 225453213 - 2¹ = 225453211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225453211) 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 11 ways as a sum of consecutive naturals, for example, 463653 + ... + 464138.

It is an arithmetic number, because the mean of its divisors is an integer number (28143024).

Almost surely, 2^225453213 is an apocalyptic number.

It is an amenable number.

225453213 is a deficient number, since it is larger than the sum of its proper divisors (112263075).

225453213 is an frugal number, since it uses more digits than its factorization.

225453213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927806 (or 927794 counting only the distinct ones).

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

The square root of 225453213 is about 15015.0995001698. The cubic root of 225453213 is about 608.6283009309.

The spelling of 225453213 in words is "two hundred twenty-five million, four hundred fifty-three thousand, two hundred thirteen".