50981321 has 2 divisors, whose sum is σ = 50981322. Its totient is φ = 50981320.

The previous prime is 50981311. The next prime is 50981423. The reversal of 50981321 is 12318905.

50981321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49857721 + 1123600 = 7061^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 50981321 - 2¹⁴ = 50964937 is a prime.

It is not a weakly prime, because it can be changed into another prime (50981311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25490660 + 25490661.

It is an arithmetic number, because the mean of its divisors is an integer number (25490661).

Almost surely, 2^50981321 is an apocalyptic number.

It is an amenable number.

50981321 is a deficient number, since it is larger than the sum of its proper divisors (1).

50981321 is an equidigital number, since it uses as much as digits as its factorization.

50981321 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 29.

The square root of 50981321 is about 7140.1205171902. The cubic root of 50981321 is about 370.7976970455.

The spelling of 50981321 in words is "fifty million, nine hundred eighty-one thousand, three hundred twenty-one".