550836638055 has 64 divisors (see below), whose sum is σ = 1068510873600. Its totient is φ = 267016901760.

The previous prime is 550836638047. The next prime is 550836638087.

550836638055 is a `hidden beast` number, since 5 + 508 + 3 + 6 + 6 + 3 + 80 + 55 = 666.

550836638055 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 550836638055 - 2³ = 550836638047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550836637992 and 550836638010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7637101 + ... + 7708889.

It is an arithmetic number, because the mean of its divisors is an integer number (16695482400).

Almost surely, 2^550836638055 is an apocalyptic number.

550836638055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550836638055 is a deficient number, since it is larger than the sum of its proper divisors (517674235545).

550836638055 is a wasteful number, since it uses less digits than its factorization.

550836638055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76981 (or 76975 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 550836638055 in words is "five hundred fifty billion, eight hundred thirty-six million, six hundred thirty-eight thousand, fifty-five".