52020652209 has 4 divisors (see below), whose sum is σ = 69360869616. Its totient is φ = 34680434804.

The previous prime is 52020652207. The next prime is 52020652217. The reversal of 52020652209 is 90225602025.

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 52020652209 - 2¹ = 52020652207 is a prime.

It is a super-2 number, since 2×52020652209² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52020652209.

It is not an unprimeable number, because it can be changed into a prime (52020652207) 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, 8670108699 + ... + 8670108704.

It is an arithmetic number, because the mean of its divisors is an integer number (17340217404).

Almost surely, 2^52020652209 is an apocalyptic number.

It is an amenable number.

52020652209 is a deficient number, since it is larger than the sum of its proper divisors (17340217407).

52020652209 is a wasteful number, since it uses less digits than its factorization.

52020652209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340217406.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 52020652209 in words is "fifty-two billion, twenty million, six hundred fifty-two thousand, two hundred nine".