50171212017 has 6 divisors (see below), whose sum is σ = 72469528482. Its totient is φ = 33447474672.

The previous prime is 50171212001. The next prime is 50171212031. The reversal of 50171212017 is 71021217105.

50171212017 is a `hidden beast` number, since 501 + 7 + 121 + 20 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29063771361 + 21107440656 = 170481^2 + 145284^2 .

It is not a de Polignac number, because 50171212017 - 2⁴ = 50171212001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50171212037) 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 in 5 ways as a sum of consecutive naturals, for example, 2787289548 + ... + 2787289565.

It is an arithmetic number, because the mean of its divisors is an integer number (12078254747).

Almost surely, 2^50171212017 is an apocalyptic number.

It is an amenable number.

50171212017 is a deficient number, since it is larger than the sum of its proper divisors (22298316465).

50171212017 is a wasteful number, since it uses less digits than its factorization.

50171212017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574579119 (or 5574579116 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 27.

The spelling of 50171212017 in words is "fifty billion, one hundred seventy-one million, two hundred twelve thousand, seventeen".