50158251617 has 2 divisors, whose sum is σ = 50158251618. Its totient is φ = 50158251616.

The previous prime is 50158251587. The next prime is 50158251643. The reversal of 50158251617 is 71615285105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32745073936 + 17413177681 = 180956^2 + 131959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50158251617 is a prime.

It is a super-2 number, since 2×50158251617² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50158250617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25079125808 + 25079125809.

It is an arithmetic number, because the mean of its divisors is an integer number (25079125809).

Almost surely, 2^50158251617 is an apocalyptic number.

It is an amenable number.

50158251617 is a deficient number, since it is larger than the sum of its proper divisors (1).

50158251617 is an equidigital number, since it uses as much as digits as its factorization.

50158251617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 41.

The spelling of 50158251617 in words is "fifty billion, one hundred fifty-eight million, two hundred fifty-one thousand, six hundred seventeen".