550864879 has 2 divisors, whose sum is σ = 550864880. Its totient is φ = 550864878.

The previous prime is 550864859. The next prime is 550864901. The reversal of 550864879 is 978468055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550864879 - 2¹¹ = 550862831 is a prime.

It is a super-3 number, since 3×550864879³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550864829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275432439 + 275432440.

It is an arithmetic number, because the mean of its divisors is an integer number (275432440).

Almost surely, 2^550864879 is an apocalyptic number.

550864879 is a deficient number, since it is larger than the sum of its proper divisors (1).

550864879 is an equidigital number, since it uses as much as digits as its factorization.

550864879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 550864879 is about 23470.5108380708. The cubic root of 550864879 is about 819.7505085715.

The spelling of 550864879 in words is "five hundred fifty million, eight hundred sixty-four thousand, eight hundred seventy-nine".