52243453209 has 4 divisors (see below), whose sum is σ = 69657937616. Its totient is φ = 34828968804.

The previous prime is 52243453181. The next prime is 52243453243. The reversal of 52243453209 is 90235434225.

It is a happy number.

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 not a de Polignac number, because 52243453209 - 2⁸ = 52243452953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52243453309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8707242199 + ... + 8707242204.

It is an arithmetic number, because the mean of its divisors is an integer number (17414484404).

Almost surely, 2^52243453209 is an apocalyptic number.

It is an amenable number.

52243453209 is a deficient number, since it is larger than the sum of its proper divisors (17414484407).

52243453209 is a wasteful number, since it uses less digits than its factorization.

52243453209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414484406.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 52243453209 in words is "fifty-two billion, two hundred forty-three million, four hundred fifty-three thousand, two hundred nine".