52247343889 has 6 divisors (see below), whose sum is σ = 56575526406. Its totient is φ = 48228317280.

The previous prime is 52247343871. The next prime is 52247343913. The reversal of 52247343889 is 98834374225.

It can be written as a sum of positive squares in 3 ways, for example, as 2382220864 + 49865123025 = 48808^2 + 223305^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52247343889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52247343389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154577772 + ... + 154578109.

It is an arithmetic number, because the mean of its divisors is an integer number (9429254401).

Almost surely, 2^52247343889 is an apocalyptic number.

It is an amenable number.

52247343889 is a deficient number, since it is larger than the sum of its proper divisors (4328182517).

52247343889 is a wasteful number, since it uses less digits than its factorization.

52247343889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309155907 (or 309155894 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 55.

The spelling of 52247343889 in words is "fifty-two billion, two hundred forty-seven million, three hundred forty-three thousand, eight hundred eighty-nine".