52824809 has 2 divisors, whose sum is σ = 52824810. Its totient is φ = 52824808.

The previous prime is 52824803. The next prime is 52824829. The reversal of 52824809 is 90842825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 1056784 = 7195^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 52824809 - 2²⁰ = 51776233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52824803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26412404 + 26412405.

It is an arithmetic number, because the mean of its divisors is an integer number (26412405).

Almost surely, 2^52824809 is an apocalyptic number.

It is an amenable number.

52824809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52824809 is an equidigital number, since it uses as much as digits as its factorization.

52824809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 52824809 is about 7268.0677624799. The cubic root of 52824809 is about 375.2142396544.

The spelling of 52824809 in words is "fifty-two million, eight hundred twenty-four thousand, eight hundred nine".