15048517217 has 2 divisors, whose sum is σ = 15048517218. Its totient is φ = 15048517216.

The previous prime is 15048517213. The next prime is 15048517243. The reversal of 15048517217 is 71271584051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9328469056 + 5720048161 = 96584^2 + 75631^2 .

It is a cyclic number.

It is not a de Polignac number, because 15048517217 - 2² = 15048517213 is a prime.

It is not a weakly prime, because it can be changed into another prime (15048517213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7524258608 + 7524258609.

It is an arithmetic number, because the mean of its divisors is an integer number (7524258609).

Almost surely, 2^15048517217 is an apocalyptic number.

It is an amenable number.

15048517217 is a deficient number, since it is larger than the sum of its proper divisors (1).

15048517217 is an equidigital number, since it uses as much as digits as its factorization.

15048517217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 15048517217 in words is "fifteen billion, forty-eight million, five hundred seventeen thousand, two hundred seventeen".