50555049768721 has 2 divisors, whose sum is σ = 50555049768722. Its totient is φ = 50555049768720.

The previous prime is 50555049768673. The next prime is 50555049768787. The reversal of 50555049768721 is 12786794055505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30907328638096 + 19647721130625 = 5559436^2 + 4432575^2 .

It is a cyclic number.

It is not a de Polignac number, because 50555049768721 - 2¹⁷ = 50555049637649 is a prime.

It is not a weakly prime, because it can be changed into another prime (50555049168721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277524884360 + 25277524884361.

It is an arithmetic number, because the mean of its divisors is an integer number (25277524884361).

Almost surely, 2^{50555049768721} is an apocalyptic number.

It is an amenable number.

50555049768721 is a deficient number, since it is larger than the sum of its proper divisors (1).

50555049768721 is an equidigital number, since it uses as much as digits as its factorization.

50555049768721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840000, while the sum is 64.

The spelling of 50555049768721 in words is "fifty trillion, five hundred fifty-five billion, forty-nine million, seven hundred sixty-eight thousand, seven hundred twenty-one".