50921722349 has 2 divisors, whose sum is σ = 50921722350. Its totient is φ = 50921722348.

The previous prime is 50921722297. The next prime is 50921722391. The reversal of 50921722349 is 94322712905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32123392900 + 18798329449 = 179230^2 + 137107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50921722349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50921722549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25460861174 + 25460861175.

It is an arithmetic number, because the mean of its divisors is an integer number (25460861175).

Almost surely, 2^50921722349 is an apocalyptic number.

It is an amenable number.

50921722349 is a deficient number, since it is larger than the sum of its proper divisors (1).

50921722349 is an equidigital number, since it uses as much as digits as its factorization.

50921722349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 50921722349 in words is "fifty billion, nine hundred twenty-one million, seven hundred twenty-two thousand, three hundred forty-nine".