550355421355 has 16 divisors (see below), whose sum is σ = 702276329664. Its totient is φ = 412606766080.

The previous prime is 550355421337. The next prime is 550355421433. The reversal of 550355421355 is 553124553055.

It is not a de Polignac number, because 550355421355 - 2¹⁵ = 550355388587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 13874551 + ... + 13914160.

It is an arithmetic number, because the mean of its divisors is an integer number (43892270604).

Almost surely, 2^550355421355 is an apocalyptic number.

550355421355 is a deficient number, since it is larger than the sum of its proper divisors (151920908309).

550355421355 is a wasteful number, since it uses less digits than its factorization.

550355421355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27788966.

The product of its (nonzero) digits is 1125000, while the sum is 43.

The spelling of 550355421355 in words is "five hundred fifty billion, three hundred fifty-five million, four hundred twenty-one thousand, three hundred fifty-five".