50551061111111 has 16 divisors (see below), whose sum is σ = 56977427524608. Its totient is φ = 44432533329600.

The previous prime is 50551061111087. The next prime is 50551061111147. The reversal of 50551061111111 is 11111116015505.

It is a cyclic number.

It is not a de Polignac number, because 50551061111111 - 2¹⁰ = 50551061110087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50551061111011) 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, 67193645 + ... + 67941798.

It is an arithmetic number, because the mean of its divisors is an integer number (3561089220288).

Almost surely, 2^{50551061111111} is an apocalyptic number.

50551061111111 is a deficient number, since it is larger than the sum of its proper divisors (6426366413497).

50551061111111 is a wasteful number, since it uses less digits than its factorization.

50551061111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135136582.

The product of its (nonzero) digits is 750, while the sum is 29.

Adding to 50551061111111 its reverse (11111116015505), we get a palindrome (61662177126616).

The spelling of 50551061111111 in words is "fifty trillion, five hundred fifty-one billion, sixty-one million, one hundred eleven thousand, one hundred eleven".