225242638562 has 6 divisors (see below), whose sum is σ = 337864964619. Its totient is φ = 112620983690.

The previous prime is 225242638561. The next prime is 225242638633. The reversal of 225242638562 is 265836242522.

It can be written as a sum of positive squares in only one way, i.e., 112621319281 + 112621319281 = 335591^2 + 335591^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335591.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225242638561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 503387 + ... + 838977.

Almost surely, 2^225242638562 is an apocalyptic number.

225242638562 is a deficient number, since it is larger than the sum of its proper divisors (112622326057).

225242638562 is an frugal number, since it uses more digits than its factorization.

225242638562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671184 (or 335593 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 47.

The spelling of 225242638562 in words is "two hundred twenty-five billion, two hundred forty-two million, six hundred thirty-eight thousand, five hundred sixty-two".