5505550891 has 2 divisors, whose sum is σ = 5505550892. Its totient is φ = 5505550890.

The previous prime is 5505550873. The next prime is 5505550909. The reversal of 5505550891 is 1980555055.

It is a balanced prime because it is at equal distance from previous prime (5505550873) and next prime (5505550909).

It is a cyclic number.

It is not a de Polignac number, because 5505550891 - 2⁵ = 5505550859 is a prime.

It is a super-2 number, since 2×5505550891² = 60622181226781787762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5505550811) 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 as a sum of consecutive naturals, namely, 2752775445 + 2752775446.

It is an arithmetic number, because the mean of its divisors is an integer number (2752775446).

Almost surely, 2^5505550891 is an apocalyptic number.

5505550891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505550891 is an equidigital number, since it uses as much as digits as its factorization.

5505550891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225000, while the sum is 43.

The square root of 5505550891 is about 74199.3995326108. The cubic root of 5505550891 is about 1765.7678037194.

The spelling of 5505550891 in words is "five billion, five hundred five million, five hundred fifty thousand, eight hundred ninety-one".