49559819 has 2 divisors, whose sum is σ = 49559820. Its totient is φ = 49559818.

The previous prime is 49559813. The next prime is 49559821. The reversal of 49559819 is 91895594.

49559819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49559819 is a prime.

It is a super-2 number, since 2×49559819² = 4912351318625522, which contains 22 as substring.

Together with 49559821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49559813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24779909 + 24779910.

It is an arithmetic number, because the mean of its divisors is an integer number (24779910).

Almost surely, 2^49559819 is an apocalyptic number.

49559819 is a deficient number, since it is larger than the sum of its proper divisors (1).

49559819 is an equidigital number, since it uses as much as digits as its factorization.

49559819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 50.

The square root of 49559819 is about 7039.8735073863. The cubic root of 49559819 is about 367.3188679636.

The spelling of 49559819 in words is "forty-nine million, five hundred fifty-nine thousand, eight hundred nineteen".