5550909191 has 2 divisors, whose sum is σ = 5550909192. Its totient is φ = 5550909190.

The previous prime is 5550909187. The next prime is 5550909193. The reversal of 5550909191 is 1919090555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5550909191 - 2² = 5550909187 is a prime.

Together with 5550909193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550909193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775454595 + 2775454596.

It is an arithmetic number, because the mean of its divisors is an integer number (2775454596).

Almost surely, 2^5550909191 is an apocalyptic number.

5550909191 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550909191 is an equidigital number, since it uses as much as digits as its factorization.

5550909191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91125, while the sum is 44.

The square root of 5550909191 is about 74504.4239693188. The cubic root of 5550909191 is about 1770.6037276808.

The spelling of 5550909191 in words is "five billion, five hundred fifty million, nine hundred nine thousand, one hundred ninety-one".