5115256500617 has 2 divisors, whose sum is σ = 5115256500618. Its totient is φ = 5115256500616.

The previous prime is 5115256500569. The next prime is 5115256500671. The reversal of 5115256500617 is 7160056525115.

Together with next prime (5115256500671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4959613626361 + 155642874256 = 2227019^2 + 394516^2 .

It is a cyclic number.

It is not a de Polignac number, because 5115256500617 - 2¹² = 5115256496521 is a prime.

It is not a weakly prime, because it can be changed into another prime (5115256500677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557628250308 + 2557628250309.

It is an arithmetic number, because the mean of its divisors is an integer number (2557628250309).

Almost surely, 2^{5115256500617} is an apocalyptic number.

It is an amenable number.

5115256500617 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115256500617 is an equidigital number, since it uses as much as digits as its factorization.

5115256500617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315000, while the sum is 44.

The spelling of 5115256500617 in words is "five trillion, one hundred fifteen billion, two hundred fifty-six million, five hundred thousand, six hundred seventeen".