5172228165 has 32 divisors (see below), whose sum is σ = 9381214080. Its totient is φ = 2412308736.

The previous prime is 5172228163. The next prime is 5172228179. The reversal of 5172228165 is 5618222715.

It is not a de Polignac number, because 5172228165 - 2¹ = 5172228163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172228163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694302 + ... + 701711.

It is an arithmetic number, because the mean of its divisors is an integer number (293162940).

Almost surely, 2^5172228165 is an apocalyptic number.

It is an amenable number.

5172228165 is a deficient number, since it is larger than the sum of its proper divisors (4208985915).

5172228165 is a wasteful number, since it uses less digits than its factorization.

5172228165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396053.

The product of its digits is 67200, while the sum is 39.

The square root of 5172228165 is about 71918.2046842105. The cubic root of 5172228165 is about 1729.3884665161.

The spelling of 5172228165 in words is "five billion, one hundred seventy-two million, two hundred twenty-eight thousand, one hundred sixty-five".