52797509 has 2 divisors, whose sum is σ = 52797510. Its totient is φ = 52797508.

The previous prime is 52797499. The next prime is 52797527. The reversal of 52797509 is 90579725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 2316484 = 7105^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 52797509 - 2⁸ = 52797253 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52797509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52797539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26398754 + 26398755.

It is an arithmetic number, because the mean of its divisors is an integer number (26398755).

Almost surely, 2^52797509 is an apocalyptic number.

It is an amenable number.

52797509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52797509 is an equidigital number, since it uses as much as digits as its factorization.

52797509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 52797509 is about 7266.1894415161. The cubic root of 52797509 is about 375.1495912816.

The spelling of 52797509 in words is "fifty-two million, seven hundred ninety-seven thousand, five hundred nine".