550403555515 has 48 divisors (see below), whose sum is σ = 764465103360. Its totient is φ = 379092225600.

The previous prime is 550403555497. The next prime is 550403555539. The reversal of 550403555515 is 515555304055.

It is not a de Polignac number, because 550403555515 - 2⁹ = 550403555003 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 41731752 + ... + 41744938.

It is an arithmetic number, because the mean of its divisors is an integer number (15926356320).

Almost surely, 2^550403555515 is an apocalyptic number.

550403555515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550403555515 is a deficient number, since it is larger than the sum of its proper divisors (214061547845).

550403555515 is a wasteful number, since it uses less digits than its factorization.

550403555515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16864 (or 16853 counting only the distinct ones).

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 550403555515 in words is "five hundred fifty billion, four hundred three million, five hundred fifty-five thousand, five hundred fifteen".