50543251513 has 2 divisors, whose sum is σ = 50543251514. Its totient is φ = 50543251512.

The previous prime is 50543251483. The next prime is 50543251537. The reversal of 50543251513 is 31515234505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40179400704 + 10363850809 = 200448^2 + 101803^2 .

It is a cyclic number.

It is not a de Polignac number, because 50543251513 - 2⁹ = 50543251001 is a prime.

It is not a weakly prime, because it can be changed into another prime (50543251573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25271625756 + 25271625757.

It is an arithmetic number, because the mean of its divisors is an integer number (25271625757).

Almost surely, 2^50543251513 is an apocalyptic number.

It is an amenable number.

50543251513 is a deficient number, since it is larger than the sum of its proper divisors (1).

50543251513 is an equidigital number, since it uses as much as digits as its factorization.

50543251513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 50543251513 in words is "fifty billion, five hundred forty-three million, two hundred fifty-one thousand, five hundred thirteen".