50366221 has 2 divisors, whose sum is σ = 50366222. Its totient is φ = 50366220.

The previous prime is 50366219. The next prime is 50366237. The reversal of 50366221 is 12266305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 15721225 = 5886^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 50366221 - 2¹ = 50366219 is a prime.

Together with 50366219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50366821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25183110 + 25183111.

It is an arithmetic number, because the mean of its divisors is an integer number (25183111).

Almost surely, 2^50366221 is an apocalyptic number.

It is an amenable number.

50366221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50366221 is an equidigital number, since it uses as much as digits as its factorization.

50366221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 50366221 is about 7096.9163021696. The cubic root of 50366221 is about 369.3004092481.

The spelling of 50366221 in words is "fifty million, three hundred sixty-six thousand, two hundred twenty-one".