225550144817 has 2 divisors, whose sum is σ = 225550144818. Its totient is φ = 225550144816.

The previous prime is 225550144669. The next prime is 225550144823. The reversal of 225550144817 is 718441055522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219556907761 + 5993237056 = 468569^2 + 77416^2 .

It is a cyclic number.

It is not a de Polignac number, because 225550144817 - 2²⁴ = 225533367601 is a prime.

It is not a weakly prime, because it can be changed into another prime (225550144217) 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 as a sum of consecutive naturals, namely, 112775072408 + 112775072409.

It is an arithmetic number, because the mean of its divisors is an integer number (112775072409).

Almost surely, 2^225550144817 is an apocalyptic number.

It is an amenable number.

225550144817 is a deficient number, since it is larger than the sum of its proper divisors (1).

225550144817 is an equidigital number, since it uses as much as digits as its factorization.

225550144817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 225550144817 in words is "two hundred twenty-five billion, five hundred fifty million, one hundred forty-four thousand, eight hundred seventeen".