550111011 has 4 divisors (see below), whose sum is σ = 733481352. Its totient is φ = 366740672.

The previous prime is 550110961. The next prime is 550111013. The reversal of 550111011 is 110111055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550111011 - 2⁹ = 550110499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550111013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91685166 + ... + 91685171.

It is an arithmetic number, because the mean of its divisors is an integer number (183370338).

Almost surely, 2^550111011 is an apocalyptic number.

550111011 is a deficient number, since it is larger than the sum of its proper divisors (183370341).

550111011 is a wasteful number, since it uses less digits than its factorization.

550111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183370340.

The product of its (nonzero) digits is 25, while the sum is 15.

The square root of 550111011 is about 23454.4454421758. The cubic root of 550111011 is about 819.3763903309.

Adding to 550111011 its reverse (110111055), we get a palindrome (660222066).

The spelling of 550111011 in words is "five hundred fifty million, one hundred eleven thousand, eleven".