50407321 has 2 divisors, whose sum is σ = 50407322. Its totient is φ = 50407320.

The previous prime is 50407277. The next prime is 50407337. The reversal of 50407321 is 12370405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28504921 + 21902400 = 5339^2 + 4680^2 .

It is a cyclic number.

It is not a de Polignac number, because 50407321 - 2¹¹ = 50405273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50407292 and 50407301.

It is not a weakly prime, because it can be changed into another prime (50407351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25203660 + 25203661.

It is an arithmetic number, because the mean of its divisors is an integer number (25203661).

Almost surely, 2^50407321 is an apocalyptic number.

It is an amenable number.

50407321 is a deficient number, since it is larger than the sum of its proper divisors (1).

50407321 is an equidigital number, since it uses as much as digits as its factorization.

50407321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 50407321 is about 7099.8113355215. The cubic root of 50407321 is about 369.4008344920.

Adding to 50407321 its reverse (12370405), we get a palindrome (62777726).

The spelling of 50407321 in words is "fifty million, four hundred seven thousand, three hundred twenty-one".