225412321 has 8 divisors (see below), whose sum is σ = 234100064. Its totient is φ = 216881280.

The previous prime is 225412289. The next prime is 225412349. The reversal of 225412321 is 123214522.

It is a happy number.

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 225412321 - 2⁵ = 225412289 is a prime.

It is a super-3 number, since 3×225412321³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225412292 and 225412301.

It is not an unprimeable number, because it can be changed into a prime (225412721) 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, 36240 + ... + 42001.

It is an arithmetic number, because the mean of its divisors is an integer number (29262508).

Almost surely, 2^225412321 is an apocalyptic number.

It is an amenable number.

225412321 is a deficient number, since it is larger than the sum of its proper divisors (8687743).

225412321 is an equidigital number, since it uses as much as digits as its factorization.

225412321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78351.

The product of its digits is 960, while the sum is 22.

The square root of 225412321 is about 15013.7377424811. The cubic root of 225412321 is about 608.5915016722.

Adding to 225412321 its reverse (123214522), we get a palindrome (348626843).

The spelling of 225412321 in words is "two hundred twenty-five million, four hundred twelve thousand, three hundred twenty-one".