225126057109 has 2 divisors, whose sum is σ = 225126057110. Its totient is φ = 225126057108.

The previous prime is 225126057089. The next prime is 225126057157. The reversal of 225126057109 is 901750621522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163299234609 + 61826822500 = 404103^2 + 248650^2 .

It is a cyclic number.

It is not a de Polignac number, because 225126057109 - 2¹⁵ = 225126024341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225126057509) 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, 112563028554 + 112563028555.

It is an arithmetic number, because the mean of its divisors is an integer number (112563028555).

Almost surely, 2^225126057109 is an apocalyptic number.

It is an amenable number.

225126057109 is a deficient number, since it is larger than the sum of its proper divisors (1).

225126057109 is an equidigital number, since it uses as much as digits as its factorization.

225126057109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 225126057109 in words is "two hundred twenty-five billion, one hundred twenty-six million, fifty-seven thousand, one hundred nine".