50505501111 has 24 divisors (see below), whose sum is σ = 76757051520. Its totient is φ = 29444497056.

The previous prime is 50505501001. The next prime is 50505501143. The reversal of 50505501111 is 11110550505.

It is not a de Polignac number, because 50505501111 - 2²⁷ = 50371283383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505501511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2611851 + ... + 2631116.

It is an arithmetic number, because the mean of its divisors is an integer number (3198210480).

Almost surely, 2^50505501111 is an apocalyptic number.

50505501111 is a deficient number, since it is larger than the sum of its proper divisors (26251550409).

50505501111 is a wasteful number, since it uses less digits than its factorization.

50505501111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5243015 (or 5243002 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 50505501111 in words is "fifty billion, five hundred five million, five hundred one thousand, one hundred eleven".