550051111 has 2 divisors, whose sum is σ = 550051112. Its totient is φ = 550051110.

The previous prime is 550051093. The next prime is 550051127. The reversal of 550051111 is 111150055.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550051111 - 2⁷ = 550050983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550051171) 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 as a sum of consecutive naturals, namely, 275025555 + 275025556.

It is an arithmetic number, because the mean of its divisors is an integer number (275025556).

Almost surely, 2^550051111 is an apocalyptic number.

550051111 is a deficient number, since it is larger than the sum of its proper divisors (1).

550051111 is an equidigital number, since it uses as much as digits as its factorization.

550051111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 550051111 is about 23453.1684639837. The cubic root of 550051111 is about 819.3466494081.

The spelling of 550051111 in words is "five hundred fifty million, fifty-one thousand, one hundred eleven".