225858123119509 has 2 divisors, whose sum is σ = 225858123119510. Its totient is φ = 225858123119508.

The previous prime is 225858123119443. The next prime is 225858123119561. The reversal of 225858123119509 is 905911321858522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209029339875409 + 16828783244100 = 14457847^2 + 4102290^2 .

It is a cyclic number.

It is not a de Polignac number, because 225858123119509 - 2¹⁹ = 225858122595221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225858123119809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112929061559754 + 112929061559755.

It is an arithmetic number, because the mean of its divisors is an integer number (112929061559755).

Almost surely, 2^{225858123119509} is an apocalyptic number.

It is an amenable number.

225858123119509 is a deficient number, since it is larger than the sum of its proper divisors (1).

225858123119509 is an equidigital number, since it uses as much as digits as its factorization.

225858123119509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552000, while the sum is 61.

The spelling of 225858123119509 in words is "two hundred twenty-five trillion, eight hundred fifty-eight billion, one hundred twenty-three million, one hundred nineteen thousand, five hundred nine".