225298644481 has 4 divisors (see below), whose sum is σ = 225729426352. Its totient is φ = 224867862612.

The previous prime is 225298644397. The next prime is 225298644491. The reversal of 225298644481 is 184446892522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184446892522 = 2 ⋅92223446261.

It is a cyclic number.

It is not a de Polignac number, because 225298644481 - 2¹⁹ = 225298120193 is a prime.

It is a super-2 number, since 2×225298644481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225298644491) 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, 215390151 + ... + 215391196.

It is an arithmetic number, because the mean of its divisors is an integer number (56432356588).

Almost surely, 2^225298644481 is an apocalyptic number.

It is an amenable number.

225298644481 is a deficient number, since it is larger than the sum of its proper divisors (430781871).

225298644481 is an equidigital number, since it uses as much as digits as its factorization.

225298644481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430781870.

The product of its digits is 8847360, while the sum is 55.

The spelling of 225298644481 in words is "two hundred twenty-five billion, two hundred ninety-eight million, six hundred forty-four thousand, four hundred eighty-one".