5550611111 has 2 divisors, whose sum is σ = 5550611112. Its totient is φ = 5550611110.

The previous prime is 5550611057. The next prime is 5550611149. The reversal of 5550611111 is 1111160555.

5550611111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5550611111 - 2²² = 5546416807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550616111) 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 as a sum of consecutive naturals, namely, 2775305555 + 2775305556.

It is an arithmetic number, because the mean of its divisors is an integer number (2775305556).

Almost surely, 2^5550611111 is an apocalyptic number.

5550611111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550611111 is an equidigital number, since it uses as much as digits as its factorization.

5550611111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 26.

The square root of 5550611111 is about 74502.4235243391. The cubic root of 5550611111 is about 1770.5720337133.

Adding to 5550611111 its reverse (1111160555), we get a palindrome (6661771666).

The spelling of 5550611111 in words is "five billion, five hundred fifty million, six hundred eleven thousand, one hundred eleven".