50005555549 has 2 divisors, whose sum is σ = 50005555550. Its totient is φ = 50005555548.

The previous prime is 50005555507. The next prime is 50005555637. The reversal of 50005555549 is 94555550005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31910463225 + 18095092324 = 178635^2 + 134518^2 .

It is a cyclic number.

It is not a de Polignac number, because 50005555549 - 2⁷ = 50005555421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50005555049) 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, 25002777774 + 25002777775.

It is an arithmetic number, because the mean of its divisors is an integer number (25002777775).

Almost surely, 2^50005555549 is an apocalyptic number.

It is an amenable number.

50005555549 is a deficient number, since it is larger than the sum of its proper divisors (1).

50005555549 is an equidigital number, since it uses as much as digits as its factorization.

50005555549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 50005555549 in words is "fifty billion, five million, five hundred fifty-five thousand, five hundred forty-nine".