49558996549 has 2 divisors, whose sum is σ = 49558996550. Its totient is φ = 49558996548.

The previous prime is 49558996519. The next prime is 49558996559. The reversal of 49558996549 is 94569985594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36350091649 + 13208904900 = 190657^2 + 114930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49558996549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49558996519) 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, 24779498274 + 24779498275.

It is an arithmetic number, because the mean of its divisors is an integer number (24779498275).

Almost surely, 2^49558996549 is an apocalyptic number.

It is an amenable number.

49558996549 is a deficient number, since it is larger than the sum of its proper divisors (1).

49558996549 is an equidigital number, since it uses as much as digits as its factorization.

49558996549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856000, while the sum is 73.

The spelling of 49558996549 in words is "forty-nine billion, five hundred fifty-eight million, nine hundred ninety-six thousand, five hundred forty-nine".