50273205821 has 4 divisors (see below), whose sum is σ = 50280284700. Its totient is φ = 50266126944.

The previous prime is 50273205793. The next prime is 50273205883. The reversal of 50273205821 is 12850237205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5225265796 + 45047940025 = 72286^2 + 212245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50273205821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50273405821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3528776 + ... + 3542993.

It is an arithmetic number, because the mean of its divisors is an integer number (12570071175).

Almost surely, 2^50273205821 is an apocalyptic number.

It is an amenable number.

50273205821 is a deficient number, since it is larger than the sum of its proper divisors (7078879).

50273205821 is an equidigital number, since it uses as much as digits as its factorization.

50273205821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078878.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 50273205821 in words is "fifty billion, two hundred seventy-three million, two hundred five thousand, eight hundred twenty-one".