50533449557 has 2 divisors, whose sum is σ = 50533449558. Its totient is φ = 50533449556.

The previous prime is 50533449521. The next prime is 50533449563. The reversal of 50533449557 is 75594433505.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48218011396 + 2315438161 = 219586^2 + 48119^2 .

It is a cyclic number.

It is not a de Polignac number, because 50533449557 - 2¹⁴ = 50533433173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50533449517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25266724778 + 25266724779.

It is an arithmetic number, because the mean of its divisors is an integer number (25266724779).

Almost surely, 2^50533449557 is an apocalyptic number.

It is an amenable number.

50533449557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50533449557 is an equidigital number, since it uses as much as digits as its factorization.

50533449557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670000, while the sum is 50.

The spelling of 50533449557 in words is "fifty billion, five hundred thirty-three million, four hundred forty-nine thousand, five hundred fifty-seven".