225298644397 has 2 divisors, whose sum is σ = 225298644398. Its totient is φ = 225298644396.

The previous prime is 225298644383. The next prime is 225298644491. The reversal of 225298644397 is 793446892522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219947868196 + 5350776201 = 468986^2 + 73149^2 .

It is a cyclic number.

It is not a de Polignac number, because 225298644397 - 2⁷ = 225298644269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225298647397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112649322198 + 112649322199.

It is an arithmetic number, because the mean of its divisors is an integer number (112649322199).

Almost surely, 2^225298644397 is an apocalyptic number.

It is an amenable number.

225298644397 is a deficient number, since it is larger than the sum of its proper divisors (1).

225298644397 is an equidigital number, since it uses as much as digits as its factorization.

225298644397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 61.

The spelling of 225298644397 in words is "two hundred twenty-five billion, two hundred ninety-eight million, six hundred forty-four thousand, three hundred ninety-seven".