50545449139 has 2 divisors, whose sum is σ = 50545449140. Its totient is φ = 50545449138.

The previous prime is 50545449049. The next prime is 50545449193. The reversal of 50545449139 is 93194454505.

Together with next prime (50545449193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50545449139 - 2⁷ = 50545449011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50545449092 and 50545449101.

It is not a weakly prime, because it can be changed into another prime (50545449839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25272724569 + 25272724570.

It is an arithmetic number, because the mean of its divisors is an integer number (25272724570).

Almost surely, 2^50545449139 is an apocalyptic number.

50545449139 is a deficient number, since it is larger than the sum of its proper divisors (1).

50545449139 is an equidigital number, since it uses as much as digits as its factorization.

50545449139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 50545449139 in words is "fifty billion, five hundred forty-five million, four hundred forty-nine thousand, one hundred thirty-nine".