225539807393 has 2 divisors, whose sum is σ = 225539807394. Its totient is φ = 225539807392.

The previous prime is 225539807377. The next prime is 225539807407. The reversal of 225539807393 is 393708935522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154939066129 + 70600741264 = 393623^2 + 265708^2 .

It is a cyclic number.

It is not a de Polignac number, because 225539807393 - 2⁴ = 225539807377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (225539807303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112769903696 + 112769903697.

It is an arithmetic number, because the mean of its divisors is an integer number (112769903697).

Almost surely, 2^225539807393 is an apocalyptic number.

It is an amenable number.

225539807393 is a deficient number, since it is larger than the sum of its proper divisors (1).

225539807393 is an equidigital number, since it uses as much as digits as its factorization.

225539807393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 225539807393 in words is "two hundred twenty-five billion, five hundred thirty-nine million, eight hundred seven thousand, three hundred ninety-three".