550055511 has 48 divisors (see below), whose sum is σ = 851947200. Its totient is φ = 341231616.

The previous prime is 550055501. The next prime is 550055521. The reversal of 550055511 is 115550055.

It is an interprime number because it is at equal distance from previous prime (550055501) and next prime (550055521).

It is not a de Polignac number, because 550055511 - 2¹⁰ = 550054487 is a prime.

It is a super-2 number, since 2×550055511² = 605122130362942242, which contains 22 as substring.

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 (550055501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1344675 + ... + 1345083.

It is an arithmetic number, because the mean of its divisors is an integer number (17748900).

Almost surely, 2^550055511 is an apocalyptic number.

550055511 is a deficient number, since it is larger than the sum of its proper divisors (301891689).

550055511 is a wasteful number, since it uses less digits than its factorization.

550055511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 550055511 is about 23453.2622677529. The cubic root of 550055511 is about 819.3488341237.

It can be divided in two parts, 55005 and 5511, that added together give a square (60516 = 246²).

The spelling of 550055511 in words is "five hundred fifty million, fifty-five thousand, five hundred eleven".