50509101111 has 16 divisors (see below), whose sum is σ = 78227993088. Its totient is φ = 28389189600.

The previous prime is 50509101107. The next prime is 50509101119. The reversal of 50509101111 is 11110190505.

It is not a de Polignac number, because 50509101111 - 2² = 50509101107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50509101119) 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 15 ways as a sum of consecutive naturals, for example, 19713435 + ... + 19715996.

It is an arithmetic number, because the mean of its divisors is an integer number (4889249568).

Almost surely, 2^50509101111 is an apocalyptic number.

50509101111 is a deficient number, since it is larger than the sum of its proper divisors (27718891977).

50509101111 is a wasteful number, since it uses less digits than its factorization.

50509101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39429502.

The product of its (nonzero) digits is 225, while the sum is 24.

Adding to 50509101111 its reverse (11110190505), we get a palindrome (61619291616).

The spelling of 50509101111 in words is "fifty billion, five hundred nine million, one hundred one thousand, one hundred eleven".