550002191 has 2 divisors, whose sum is σ = 550002192. Its totient is φ = 550002190.

The previous prime is 550002179. The next prime is 550002199. The reversal of 550002191 is 191200055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550002191 - 2⁶ = 550002127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550002199) 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 as a sum of consecutive naturals, namely, 275001095 + 275001096.

It is an arithmetic number, because the mean of its divisors is an integer number (275001096).

Almost surely, 2^550002191 is an apocalyptic number.

550002191 is a deficient number, since it is larger than the sum of its proper divisors (1).

550002191 is an equidigital number, since it uses as much as digits as its factorization.

550002191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 550002191 is about 23452.1255113476. The cubic root of 550002191 is about 819.3223585585.

The spelling of 550002191 in words is "five hundred fifty million, two thousand, one hundred ninety-one".