225220343 has 4 divisors (see below), whose sum is σ = 225743328. Its totient is φ = 224697360.

The previous prime is 225220337. The next prime is 225220367. The reversal of 225220343 is 343022522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343022522 = 2 ⋅171511261.

It is a cyclic number.

It is not a de Polignac number, because 225220343 - 2⁸ = 225220087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225226343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260846 + ... + 261707.

It is an arithmetic number, because the mean of its divisors is an integer number (56435832).

Almost surely, 2^225220343 is an apocalyptic number.

225220343 is a deficient number, since it is larger than the sum of its proper divisors (522985).

225220343 is an equidigital number, since it uses as much as digits as its factorization.

225220343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522984.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 225220343 is about 15007.3429693600. The cubic root of 225220343 is about 608.4186785788.

Adding to 225220343 its reverse (343022522), we get a palindrome (568242865).

The spelling of 225220343 in words is "two hundred twenty-five million, two hundred twenty thousand, three hundred forty-three".