53243256832 has 84 divisors (see below), whose sum is σ = 107641716390. Its totient is φ = 26334199808.

The previous prime is 53243256827. The next prime is 53243256851. The reversal of 53243256832 is 23865234235.

It can be written as a sum of positive squares in 3 ways, for example, as 21837746176 + 31405510656 = 147776^2 + 177216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104603394 + ... + 104603902.

Almost surely, 2^53243256832 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 53243256832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53820858195).

53243256832 is an abundant number, since it is smaller than the sum of its proper divisors (54398459558).

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

53243256832 is an frugal number, since it uses more digits than its factorization.

53243256832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 624 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The spelling of 53243256832 in words is "fifty-three billion, two hundred forty-three million, two hundred fifty-six thousand, eight hundred thirty-two".