225052213 has 4 divisors (see below), whose sum is σ = 225468748. Its totient is φ = 224635680.

The previous prime is 225052193. The next prime is 225052231. The reversal of 225052213 is 312250522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137311524 + 87740689 = 11718^2 + 9367^2 .

It is a cyclic number.

It is not a de Polignac number, because 225052213 - 2¹⁷ = 224921141 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 (225052913) 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 3 ways as a sum of consecutive naturals, for example, 207456 + ... + 208537.

It is an arithmetic number, because the mean of its divisors is an integer number (56367187).

Almost surely, 2^225052213 is an apocalyptic number.

It is an amenable number.

225052213 is a deficient number, since it is larger than the sum of its proper divisors (416535).

225052213 is an equidigital number, since it uses as much as digits as its factorization.

225052213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416534.

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

The square root of 225052213 is about 15001.7403323748. The cubic root of 225052213 is about 608.2672433279.

The spelling of 225052213 in words is "two hundred twenty-five million, fifty-two thousand, two hundred thirteen".