52008717809 has 2 divisors, whose sum is σ = 52008717810. Its totient is φ = 52008717808.

The previous prime is 52008717697. The next prime is 52008717847. The reversal of 52008717809 is 90871780025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48477030625 + 3531687184 = 220175^2 + 59428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52008717809 is a prime.

It is not a weakly prime, because it can be changed into another prime (52008717209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26004358904 + 26004358905.

It is an arithmetic number, because the mean of its divisors is an integer number (26004358905).

Almost surely, 2^52008717809 is an apocalyptic number.

It is an amenable number.

52008717809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52008717809 is an equidigital number, since it uses as much as digits as its factorization.

52008717809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 52008717809 in words is "fifty-two billion, eight million, seven hundred seventeen thousand, eight hundred nine".