53565536320 has 112 divisors (see below), whose sum is σ = 128639273328. Its totient is φ = 21244354560.

The previous prime is 53565536293. The next prime is 53565536333. The reversal of 53565536320 is 2363556535.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 97298496 + 53468237824 = 9864^2 + 231232^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33207834 + ... + 33209446.

Almost surely, 2^53565536320 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 53565536320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64319636664).

53565536320 is an abundant number, since it is smaller than the sum of its proper divisors (75073737008).

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

53565536320 is a wasteful number, since it uses less digits than its factorization.

53565536320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 43.

The spelling of 53565536320 in words is "fifty-three billion, five hundred sixty-five million, five hundred thirty-six thousand, three hundred twenty".