550206330491 has 2 divisors, whose sum is σ = 550206330492. Its totient is φ = 550206330490.

The previous prime is 550206330463. The next prime is 550206330493. The reversal of 550206330491 is 194033602055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550206330491 - 2¹⁰ = 550206329467 is a prime.

It is a super-2 number, since 2×550206330491² (a number of 24 digits) contains 22 as substring.

Together with 550206330493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550206330493) 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 as a sum of consecutive naturals, namely, 275103165245 + 275103165246.

It is an arithmetic number, because the mean of its divisors is an integer number (275103165246).

Almost surely, 2^550206330491 is an apocalyptic number.

550206330491 is a deficient number, since it is larger than the sum of its proper divisors (1).

550206330491 is an equidigital number, since it uses as much as digits as its factorization.

550206330491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 550206330491 in words is "five hundred fifty billion, two hundred six million, three hundred thirty thousand, four hundred ninety-one".