550549999998 has 12 divisors (see below), whose sum is σ = 1192858333368. Its totient is φ = 183516666660.

The previous prime is 550549999969. The next prime is 550550000017. The reversal of 550549999998 is 899999945055.

550549999998 is a `hidden beast` number, since 550 + 54 + 9 + 9 + 9 + 9 + 9 + 9 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 15293055538 + ... + 15293055573.

It is an arithmetic number, because the mean of its divisors is an integer number (99404861114).

Almost surely, 2^550549999998 is an apocalyptic number.

550549999998 is an abundant number, since it is smaller than the sum of its proper divisors (642308333370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550549999998 is a wasteful number, since it uses less digits than its factorization.

550549999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30586111119 (or 30586111116 counting only the distinct ones).

The product of its (nonzero) digits is 2125764000, while the sum is 81.

The spelling of 550549999998 in words is "five hundred fifty billion, five hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".