50005551111 has 8 divisors (see below), whose sum is σ = 66675126144. Its totient is φ = 33336505080.

The previous prime is 50005551073. The next prime is 50005551133. The reversal of 50005551111 is 11115550005.

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

It is not a de Polignac number, because 50005551111 - 2⁶ = 50005551047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50005551311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230320 + ... + 391226.

It is an arithmetic number, because the mean of its divisors is an integer number (8334390768).

Almost surely, 2^50005551111 is an apocalyptic number.

50005551111 is a deficient number, since it is larger than the sum of its proper divisors (16669575033).

50005551111 is a wasteful number, since it uses less digits than its factorization.

50005551111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264501.

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

It can be divided in two parts, 5000 and 5551111, that added together give a triangular number (5556111 = T₃₃₃₃).

The spelling of 50005551111 in words is "fifty billion, five million, five hundred fifty-one thousand, one hundred eleven".