52120064430 has 192 divisors, whose sum is σ = 159389313408. Its totient is φ = 11566955520.

The previous prime is 52120064413. The next prime is 52120064443. The reversal of 52120064430 is 3446002125.

52120064430 is a `hidden beast` number, since 5 + 2 + 12 + 0 + 0 + 644 + 3 + 0 = 666.

It is a super-2 number, since 2×52120064430² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52120064394 and 52120064403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12608644 + ... + 12612776.

It is an arithmetic number, because the mean of its divisors is an integer number (830152674).

Almost surely, 2^52120064430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52120064430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79694656704).

52120064430 is an abundant number, since it is smaller than the sum of its proper divisors (107269248978).

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

52120064430 is a wasteful number, since it uses less digits than its factorization.

52120064430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 52120064430 its reverse (3446002125), we get a palindrome (55566066555).

The spelling of 52120064430 in words is "fifty-two billion, one hundred twenty million, sixty-four thousand, four hundred thirty".