50505117839 has 8 divisors (see below), whose sum is σ = 55206912000. Its totient is φ = 45821727000.

The previous prime is 50505117833. The next prime is 50505117841. The reversal of 50505117839 is 93871150505.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50505117839 - 2⁸ = 50505117583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50505117839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505117833) 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 in 7 ways as a sum of consecutive naturals, for example, 4595087 + ... + 4606064.

It is an arithmetic number, because the mean of its divisors is an integer number (6900864000).

Almost surely, 2^50505117839 is an apocalyptic number.

50505117839 is a deficient number, since it is larger than the sum of its proper divisors (4701794161).

50505117839 is a wasteful number, since it uses less digits than its factorization.

50505117839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201661.

The product of its (nonzero) digits is 189000, while the sum is 44.

The spelling of 50505117839 in words is "fifty billion, five hundred five million, one hundred seventeen thousand, eight hundred thirty-nine".