48117809 has 2 divisors, whose sum is σ = 48117810. Its totient is φ = 48117808.

The previous prime is 48117791. The next prime is 48117827. The reversal of 48117809 is 90871184.

48117809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (48117791) and next prime (48117827).

It can be written as a sum of positive squares in only one way, i.e., 27615025 + 20502784 = 5255^2 + 4528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48117809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (48117829) 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, 24058904 + 24058905.

It is an arithmetic number, because the mean of its divisors is an integer number (24058905).

Almost surely, 2^48117809 is an apocalyptic number.

It is an amenable number.

48117809 is a deficient number, since it is larger than the sum of its proper divisors (1).

48117809 is an equidigital number, since it uses as much as digits as its factorization.

48117809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 48117809 is about 6936.7001520896. The cubic root of 48117809 is about 363.7211994848.

The spelling of 48117809 in words is "forty-eight million, one hundred seventeen thousand, eight hundred nine".