50665500650 has 24 divisors (see below), whose sum is σ = 94979873280. Its totient is φ = 20106621360.

The previous prime is 50665500649. The next prime is 50665500703. The reversal of 50665500650 is 5600556605.

It is a happy number.

It is a super-2 number, since 2×50665500650² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3983060 + ... + 3995759.

It is an arithmetic number, because the mean of its divisors is an integer number (3957494720).

Almost surely, 2^50665500650 is an apocalyptic number.

50665500650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50665500650 is a deficient number, since it is larger than the sum of its proper divisors (44314372630).

50665500650 is a wasteful number, since it uses less digits than its factorization.

50665500650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978958 (or 7978953 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 50665500650 in words is "fifty billion, six hundred sixty-five million, five hundred thousand, six hundred fifty".