50809117 has 2 divisors, whose sum is σ = 50809118. Its totient is φ = 50809116.

The previous prime is 50809111. The next prime is 50809159. The reversal of 50809117 is 71190805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50779876 + 29241 = 7126^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 50809117 - 2²³ = 42420509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50809111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25404558 + 25404559.

It is an arithmetic number, because the mean of its divisors is an integer number (25404559).

Almost surely, 2^50809117 is an apocalyptic number.

It is an amenable number.

50809117 is a deficient number, since it is larger than the sum of its proper divisors (1).

50809117 is an equidigital number, since it uses as much as digits as its factorization.

50809117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 50809117 is about 7128.0514167618. The cubic root of 50809117 is about 370.3797343202.

The spelling of 50809117 in words is "fifty million, eight hundred nine thousand, one hundred seventeen".