52279032636 has 144 divisors (see below), whose sum is σ = 142683332064. Its totient is φ = 16722256896.

The previous prime is 52279032593. The next prime is 52279032643. The reversal of 52279032636 is 63623097225.

52279032636 is a `hidden beast` number, since 5 + 2 + 2 + 7 + 9 + 0 + 3 + 2 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 52279032591 and 52279032600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2615416 + ... + 2635328.

Almost surely, 2^52279032636 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 52279032636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71341666032).

52279032636 is an abundant number, since it is smaller than the sum of its proper divisors (90404299428).

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

52279032636 is a wasteful number, since it uses less digits than its factorization.

52279032636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20042 (or 20028 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 52279032636 in words is "fifty-two billion, two hundred seventy-nine million, thirty-two thousand, six hundred thirty-six".