52041809 has 2 divisors, whose sum is σ = 52041810. Its totient is φ = 52041808.

The previous prime is 52041799. The next prime is 52041823. The reversal of 52041809 is 90814025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43191184 + 8850625 = 6572^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 52041809 - 2⁸ = 52041553 is a prime.

It is not a weakly prime, because it can be changed into another prime (52044809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26020904 + 26020905.

It is an arithmetic number, because the mean of its divisors is an integer number (26020905).

Almost surely, 2^52041809 is an apocalyptic number.

It is an amenable number.

52041809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52041809 is an equidigital number, since it uses as much as digits as its factorization.

52041809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 52041809 is about 7214.0009010257. Note that the first 3 decimals coincide. The cubic root of 52041809 is about 373.3511225757.

The spelling of 52041809 in words is "fifty-two million, forty-one thousand, eight hundred nine".