50380666481 has 2 divisors, whose sum is σ = 50380666482. Its totient is φ = 50380666480.

The previous prime is 50380666471. The next prime is 50380666507. The reversal of 50380666481 is 18466608305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44392383025 + 5988283456 = 210695^2 + 77384^2 .

It is a cyclic number.

It is not a de Polignac number, because 50380666481 - 2⁶ = 50380666417 is a prime.

It is a super-2 number, since 2×50380666481² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50380666471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25190333240 + 25190333241.

It is an arithmetic number, because the mean of its divisors is an integer number (25190333241).

Almost surely, 2^50380666481 is an apocalyptic number.

It is an amenable number.

50380666481 is a deficient number, since it is larger than the sum of its proper divisors (1).

50380666481 is an equidigital number, since it uses as much as digits as its factorization.

50380666481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 50380666481 in words is "fifty billion, three hundred eighty million, six hundred sixty-six thousand, four hundred eighty-one".