50505505911 has 16 divisors (see below), whose sum is σ = 85511968000. Its totient is φ = 28860288984.

The previous prime is 50505505889. The next prime is 50505505961. The reversal of 50505505911 is 11950550505.

It is a happy number.

50505505911 is a `hidden beast` number, since 5 + 0 + 50 + 550 + 59 + 1 + 1 = 666.

It is not a de Polignac number, because 50505505911 - 2⁷ = 50505505783 is a prime.

It is a super-2 number, since 2×50505505911² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505505961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133612261 + ... + 133612638.

It is an arithmetic number, because the mean of its divisors is an integer number (5344498000).

Almost surely, 2^50505505911 is an apocalyptic number.

50505505911 is a deficient number, since it is larger than the sum of its proper divisors (35006462089).

50505505911 is a wasteful number, since it uses less digits than its factorization.

50505505911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267224915 (or 267224909 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 36.

The spelling of 50505505911 in words is "fifty billion, five hundred five million, five hundred five thousand, nine hundred eleven".