53445312320 has 112 divisors (see below), whose sum is σ = 130523162880. Its totient is φ = 20833376256.

The previous prime is 53445312289. The next prime is 53445312379. The reversal of 53445312320 is 2321354435.

53445312320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6366686 + ... + 6375074.

Almost surely, 2^53445312320 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 53445312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65261581440).

53445312320 is an abundant number, since it is smaller than the sum of its proper divisors (77077850560).

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

53445312320 is a wasteful number, since it uses less digits than its factorization.

53445312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8912 (or 8902 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 53445312320 its reverse (2321354435), we get a palindrome (55766666755).

The spelling of 53445312320 in words is "fifty-three billion, four hundred forty-five million, three hundred twelve thousand, three hundred twenty".