52356387865 has 16 divisors (see below), whose sum is σ = 65225483280. Its totient is φ = 40296847360.

The previous prime is 52356387827. The next prime is 52356387871. The reversal of 52356387865 is 56878365325.

It can be written as a sum of positive squares in 8 ways, for example, as 267911424 + 52088476441 = 16368^2 + 228229^2 .

It is not a de Polignac number, because 52356387865 - 2³¹ = 50208904217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601744 + ... + 683233.

It is an arithmetic number, because the mean of its divisors is an integer number (4076592705).

Almost surely, 2^52356387865 is an apocalyptic number.

It is an amenable number.

52356387865 is a deficient number, since it is larger than the sum of its proper divisors (12869095415).

52356387865 is a wasteful number, since it uses less digits than its factorization.

52356387865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285292.

The product of its digits is 36288000, while the sum is 58.

The spelling of 52356387865 in words is "fifty-two billion, three hundred fifty-six million, three hundred eighty-seven thousand, eight hundred sixty-five".