225052321 has 32 divisors (see below), whose sum is σ = 265870080. Its totient is φ = 188697600.

The previous prime is 225052297. The next prime is 225052339. The reversal of 225052321 is 123250522.

It is not a de Polignac number, because 225052321 - 2⁷ = 225052193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225052292 and 225052301.

It is not an unprimeable number, because it can be changed into a prime (225052361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718861 + ... + 719173.

It is an arithmetic number, because the mean of its divisors is an integer number (8308440).

Almost surely, 2^225052321 is an apocalyptic number.

It is an amenable number.

225052321 is a deficient number, since it is larger than the sum of its proper divisors (40817759).

225052321 is a wasteful number, since it uses less digits than its factorization.

225052321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 225052321 is about 15001.7439319567. The cubic root of 225052321 is about 608.2673406280.

The spelling of 225052321 in words is "two hundred twenty-five million, fifty-two thousand, three hundred twenty-one".