50505550481 has 4 divisors (see below), whose sum is σ = 50576786100. Its totient is φ = 50434314864.

The previous prime is 50505550457. The next prime is 50505550519. The reversal of 50505550481 is 18405550505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18405550505 = 5 ⋅3681110101.

It can be written as a sum of positive squares in 2 ways, for example, as 27186733456 + 23318817025 = 164884^2 + 152705^2 .

It is a cyclic number.

It is not a de Polignac number, because 50505550481 - 2²² = 50501356177 is a prime.

It is a super-2 number, since 2×50505550481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50505550681) 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 in 3 ways as a sum of consecutive naturals, for example, 35616746 + ... + 35618163.

It is an arithmetic number, because the mean of its divisors is an integer number (12644196525).

Almost surely, 2^50505550481 is an apocalyptic number.

It is an amenable number.

50505550481 is a deficient number, since it is larger than the sum of its proper divisors (71235619).

50505550481 is an equidigital number, since it uses as much as digits as its factorization.

50505550481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71235618.

The product of its (nonzero) digits is 100000, while the sum is 38.

The spelling of 50505550481 in words is "fifty billion, five hundred five million, five hundred fifty thousand, four hundred eighty-one".