50213321 has 2 divisors, whose sum is σ = 50213322. Its totient is φ = 50213320.

The previous prime is 50213299. The next prime is 50213341. The reversal of 50213321 is 12331205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41422096 + 8791225 = 6436^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 50213321 - 2¹⁰ = 50212297 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_3013118 and since 50213321 and 3013118 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50213321.

It is not a weakly prime, because it can be changed into another prime (50213341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25106660 + 25106661.

It is an arithmetic number, because the mean of its divisors is an integer number (25106661).

Almost surely, 2^50213321 is an apocalyptic number.

It is an amenable number.

50213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

50213321 is an equidigital number, since it uses as much as digits as its factorization.

50213321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 50213321 is about 7086.1358299146. The cubic root of 50213321 is about 368.9263273918.

Adding to 50213321 its reverse (12331205), we get a palindrome (62544526).

The spelling of 50213321 in words is "fifty million, two hundred thirteen thousand, three hundred twenty-one".