50216321 has 2 divisors, whose sum is σ = 50216322. Its totient is φ = 50216320.

The previous prime is 50216273. The next prime is 50216323. The reversal of 50216321 is 12361205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27415696 + 22800625 = 5236^2 + 4775^2 .

It is a cyclic number.

It is not a de Polignac number, because 50216321 - 2¹⁴ = 50199937 is a prime.

Together with 50216323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 50216293 and 50216302.

It is not a weakly prime, because it can be changed into another prime (50216323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25108160 + 25108161.

It is an arithmetic number, because the mean of its divisors is an integer number (25108161).

Almost surely, 2^50216321 is an apocalyptic number.

It is an amenable number.

50216321 is a deficient number, since it is larger than the sum of its proper divisors (1).

50216321 is an equidigital number, since it uses as much as digits as its factorization.

50216321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 50216321 is about 7086.3475077080. The cubic root of 50216321 is about 368.9336744259.

Adding to 50216321 its reverse (12361205), we get a palindrome (62577526).

The spelling of 50216321 in words is "fifty million, two hundred sixteen thousand, three hundred twenty-one".