550055111 has 16 divisors (see below), whose sum is σ = 614304000. Its totient is φ = 489460608.

The previous prime is 550055101. The next prime is 550055113. The reversal of 550055111 is 111550055.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550055111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550055113) 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 15 ways as a sum of consecutive naturals, for example, 192056 + ... + 194898.

It is an arithmetic number, because the mean of its divisors is an integer number (38394000).

Almost surely, 2^550055111 is an apocalyptic number.

550055111 is a deficient number, since it is larger than the sum of its proper divisors (64248889).

550055111 is a wasteful number, since it uses less digits than its factorization.

550055111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 550055111 is about 23453.2537401530. The cubic root of 550055111 is about 819.3486355137.

The spelling of 550055111 in words is "five hundred fifty million, fifty-five thousand, one hundred eleven".