500550000111 has 40 divisors (see below), whose sum is σ = 874427900544. Its totient is φ = 279376730640.

The previous prime is 500550000103. The next prime is 500550000121. The reversal of 500550000111 is 111000055005.

500550000111 is a `hidden beast` number, since 5 + 0 + 0 + 550 + 0 + 0 + 0 + 111 = 666.

It is not a de Polignac number, because 500550000111 - 2³ = 500550000103 is a prime.

It is a super-2 number, since 2×500550000111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500550000121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10240785 + ... + 10289546.

Almost surely, 2^500550000111 is an apocalyptic number.

500550000111 is a deficient number, since it is larger than the sum of its proper divisors (373877900433).

500550000111 is a wasteful number, since it uses less digits than its factorization.

500550000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20530393 (or 20530384 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 500550000111 its reverse (111000055005), we get a palindrome (611550055116).

The spelling of 500550000111 in words is "five hundred billion, five hundred fifty million, one hundred eleven", and thus it is an aban number.