50340221 has 2 divisors, whose sum is σ = 50340222. Its totient is φ = 50340220.

The previous prime is 50340211. The next prime is 50340223. The reversal of 50340221 is 12204305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 11464996 = 6235^2 + 3386^2 .

It is a cyclic number.

It is not a de Polignac number, because 50340221 - 2²² = 46145917 is a prime.

Together with 50340223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50340221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50340223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25170110 + 25170111.

It is an arithmetic number, because the mean of its divisors is an integer number (25170111).

Almost surely, 2^50340221 is an apocalyptic number.

It is an amenable number.

50340221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50340221 is an equidigital number, since it uses as much as digits as its factorization.

50340221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 50340221 is about 7095.0842842069. The cubic root of 50340221 is about 369.2368516815.

Adding to 50340221 its reverse (12204305), we get a palindrome (62544526).

The spelling of 50340221 in words is "fifty million, three hundred forty thousand, two hundred twenty-one".