50589665689 has 2 divisors, whose sum is σ = 50589665690. Its totient is φ = 50589665688.

The previous prime is 50589665683. The next prime is 50589665701. The reversal of 50589665689 is 98656698505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40968998464 + 9620667225 = 202408^2 + 98085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50589665689 is a prime.

It is a super-3 number, since 3×50589665689³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (50589665683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25294832844 + 25294832845.

It is an arithmetic number, because the mean of its divisors is an integer number (25294832845).

Almost surely, 2^50589665689 is an apocalyptic number.

It is an amenable number.

50589665689 is a deficient number, since it is larger than the sum of its proper divisors (1).

50589665689 is an equidigital number, since it uses as much as digits as its factorization.

50589665689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968000, while the sum is 67.

The spelling of 50589665689 in words is "fifty billion, five hundred eighty-nine million, six hundred sixty-five thousand, six hundred eighty-nine".