49805647 has 2 divisors, whose sum is σ = 49805648. Its totient is φ = 49805646.

The previous prime is 49805641. The next prime is 49805677. The reversal of 49805647 is 74650894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49805647 - 2²³ = 41417039 is a prime.

It is a super-3 number, since 3×49805647³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49805641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24902823 + 24902824.

It is an arithmetic number, because the mean of its divisors is an integer number (24902824).

Almost surely, 2^49805647 is an apocalyptic number.

49805647 is a deficient number, since it is larger than the sum of its proper divisors (1).

49805647 is an equidigital number, since it uses as much as digits as its factorization.

49805647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 49805647 is about 7057.3115986188. The cubic root of 49805647 is about 367.9251949991.

The spelling of 49805647 in words is "forty-nine million, eight hundred five thousand, six hundred forty-seven".