50817817 has 2 divisors, whose sum is σ = 50817818. Its totient is φ = 50817816.

The previous prime is 50817797. The next prime is 50817881. The reversal of 50817817 is 71871805.

50817817 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., 47734281 + 3083536 = 6909^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 50817817 - 2²³ = 42429209 is a prime.

It is not a weakly prime, because it can be changed into another prime (50857817) 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, 25408908 + 25408909.

It is an arithmetic number, because the mean of its divisors is an integer number (25408909).

Almost surely, 2^50817817 is an apocalyptic number.

It is an amenable number.

50817817 is a deficient number, since it is larger than the sum of its proper divisors (1).

50817817 is an equidigital number, since it uses as much as digits as its factorization.

50817817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 50817817 is about 7128.6616555985. The cubic root of 50817817 is about 370.4008730447.

The spelling of 50817817 in words is "fifty million, eight hundred seventeen thousand, eight hundred seventeen".