5236856165 has 4 divisors (see below), whose sum is σ = 6284227404. Its totient is φ = 4189484928.

The previous prime is 5236856153. The next prime is 5236856197. The reversal of 5236856165 is 5616586325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2842809124 + 2394047041 = 53318^2 + 48929^2 .

It is a cyclic number.

It is not a de Polignac number, because 5236856165 - 2²⁴ = 5220078949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523685612 + ... + 523685621.

It is an arithmetic number, because the mean of its divisors is an integer number (1571056851).

Almost surely, 2^5236856165 is an apocalyptic number.

It is an amenable number.

5236856165 is a deficient number, since it is larger than the sum of its proper divisors (1047371239).

5236856165 is a wasteful number, since it uses less digits than its factorization.

5236856165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047371238.

The product of its digits is 1296000, while the sum is 47.

The square root of 5236856165 is about 72366.1258117360. The cubic root of 5236856165 is about 1736.5616874580.

The spelling of 5236856165 in words is "five billion, two hundred thirty-six million, eight hundred fifty-six thousand, one hundred sixty-five".