12755625217 has 2 divisors, whose sum is σ = 12755625218. Its totient is φ = 12755625216.

The previous prime is 12755625191. The next prime is 12755625277. The reversal of 12755625217 is 71252655721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9455812081 + 3299813136 = 97241^2 + 57444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12755625217 is a prime.

It is not a weakly prime, because it can be changed into another prime (12755625277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6377812608 + 6377812609.

It is an arithmetic number, because the mean of its divisors is an integer number (6377812609).

Almost surely, 2^12755625217 is an apocalyptic number.

It is an amenable number.

12755625217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12755625217 is an equidigital number, since it uses as much as digits as its factorization.

12755625217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294000, while the sum is 43.

The spelling of 12755625217 in words is "twelve billion, seven hundred fifty-five million, six hundred twenty-five thousand, two hundred seventeen".