52122152172 has 48 divisors (see below), whose sum is σ = 123710186880. Its totient is φ = 17075363328.

The previous prime is 52122152153. The next prime is 52122152177. The reversal of 52122152172 is 27125122125.

52122152172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52122152172² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52122152177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321983 + ... + 4334025.

It is an arithmetic number, because the mean of its divisors is an integer number (2577295560).

Almost surely, 2^52122152172 is an apocalyptic number.

It is an amenable number.

52122152172 is an abundant number, since it is smaller than the sum of its proper divisors (71588034708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52122152172 is a wasteful number, since it uses less digits than its factorization.

52122152172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18222 (or 18220 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

Adding to 52122152172 its reverse (27125122125), we get a palindrome (79247274297).

The spelling of 52122152172 in words is "fifty-two billion, one hundred twenty-two million, one hundred fifty-two thousand, one hundred seventy-two".