52505032212 has 72 divisors (see below), whose sum is σ = 139817932800. Its totient is φ = 16567296768.

The previous prime is 52505032211. The next prime is 52505032243. The reversal of 52505032212 is 21223050525.

It is a super-2 number, since 2×52505032212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505032211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 844828 + ... + 904844.

Almost surely, 2^52505032212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52505032212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69908966400).

52505032212 is an abundant number, since it is smaller than the sum of its proper divisors (87312900588).

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

52505032212 is a wasteful number, since it uses less digits than its factorization.

52505032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61325 (or 61320 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 52505032212 its reverse (21223050525), we get a palindrome (73728082737).

The spelling of 52505032212 in words is "fifty-two billion, five hundred five million, thirty-two thousand, two hundred twelve".