50728282321 has 16 divisors (see below), whose sum is σ = 52312440528. Its totient is φ = 49175424000.

The previous prime is 50728282289. The next prime is 50728282337. The reversal of 50728282321 is 12328282705.

50728282321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1483790400 + 49244491921 = 38520^2 + 221911^2 .

It is a cyclic number.

It is not a de Polignac number, because 50728282321 - 2⁵ = 50728282289 is a prime.

It is a super-2 number, since 2×50728282321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50728282391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984991 + ... + 1035211.

It is an arithmetic number, because the mean of its divisors is an integer number (3269527533).

Almost surely, 2^50728282321 is an apocalyptic number.

It is an amenable number.

50728282321 is a deficient number, since it is larger than the sum of its proper divisors (1584158207).

50728282321 is a wasteful number, since it uses less digits than its factorization.

50728282321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50532.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 50728282321 in words is "fifty billion, seven hundred twenty-eight million, two hundred eighty-two thousand, three hundred twenty-one".