49717649 has 2 divisors, whose sum is σ = 49717650. Its totient is φ = 49717648.

The previous prime is 49717643. The next prime is 49717663. The reversal of 49717649 is 94671794.

It is a happy number.

49717649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 6250000 = 6593^2 + 2500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49717649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49717643) 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, 24858824 + 24858825.

It is an arithmetic number, because the mean of its divisors is an integer number (24858825).

Almost surely, 2^49717649 is an apocalyptic number.

It is an amenable number.

49717649 is a deficient number, since it is larger than the sum of its proper divisors (1).

49717649 is an equidigital number, since it uses as much as digits as its factorization.

49717649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 49717649 is about 7051.0743153083. The cubic root of 49717649 is about 367.7083804409.

The spelling of 49717649 in words is "forty-nine million, seven hundred seventeen thousand, six hundred forty-nine".