52680809 has 2 divisors, whose sum is σ = 52680810. Its totient is φ = 52680808.

The previous prime is 52680799. The next prime is 52680821. The reversal of 52680809 is 90808625.

52680809 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., 51437584 + 1243225 = 7172^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 52680809 - 2⁸ = 52680553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52680829) 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, 26340404 + 26340405.

It is an arithmetic number, because the mean of its divisors is an integer number (26340405).

Almost surely, 2^52680809 is an apocalyptic number.

It is an amenable number.

52680809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52680809 is an equidigital number, since it uses as much as digits as its factorization.

52680809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 52680809 is about 7258.1546552826. The cubic root of 52680809 is about 374.8729857253.

The spelling of 52680809 in words is "fifty-two million, six hundred eighty thousand, eight hundred nine".