52682809 has 4 divisors (see below), whose sum is σ = 53349760. Its totient is φ = 52015860.

The previous prime is 52682789. The next prime is 52682849. The reversal of 52682809 is 90828625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52682809 - 2¹³ = 52674617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52682849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333357 + ... + 333514.

It is an arithmetic number, because the mean of its divisors is an integer number (13337440).

Almost surely, 2^52682809 is an apocalyptic number.

It is an amenable number.

52682809 is a deficient number, since it is larger than the sum of its proper divisors (666951).

52682809 is an equidigital number, since it uses as much as digits as its factorization.

52682809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666950.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 52682809 is about 7258.2924300417. The cubic root of 52682809 is about 374.8777296190.

The spelling of 52682809 in words is "fifty-two million, six hundred eighty-two thousand, eight hundred nine".