5550990555 has 24 divisors (see below), whose sum is σ = 9762406416. Its totient is φ = 2691388480.

The previous prime is 5550990547. The next prime is 5550990559.

5550990555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5550990555 - 2³ = 5550990547 is a prime.

It is a super-2 number, since 2×5550990555² = 61626992283398416050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5550990559) 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 in 23 ways as a sum of consecutive naturals, for example, 1527384 + ... + 1531013.

It is an arithmetic number, because the mean of its divisors is an integer number (406766934).

Almost surely, 2^5550990555 is an apocalyptic number.

5550990555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5550990555 is a deficient number, since it is larger than the sum of its proper divisors (4211415861).

5550990555 is a wasteful number, since it uses less digits than its factorization.

5550990555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058427 (or 3058416 counting only the distinct ones).

The product of its (nonzero) digits is 1265625, while the sum is 48.

The square root of 5550990555 is about 74504.9700020072. The cubic root of 5550990555 is about 1770.6123786779.

The spelling of 5550990555 in words is "five billion, five hundred fifty million, nine hundred ninety thousand, five hundred fifty-five".