50006666550 has 24 divisors (see below), whose sum is σ = 124016533416. Its totient is φ = 13335111040.

The previous prime is 50006666543. The next prime is 50006666569. The reversal of 50006666550 is 5566660005.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 50006666499 and 50006666508.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 166688739 + ... + 166689038.

It is an arithmetic number, because the mean of its divisors is an integer number (5167355559).

Almost surely, 2^50006666550 is an apocalyptic number.

50006666550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50006666550 is an abundant number, since it is smaller than the sum of its proper divisors (74009866866).

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

50006666550 is a wasteful number, since it uses less digits than its factorization.

50006666550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333377792 (or 333377787 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 50006666550 in words is "fifty billion, six million, six hundred sixty-six thousand, five hundred fifty".