53744513320 has 128 divisors (see below), whose sum is σ = 132660115200. Its totient is φ = 19505074176.

The previous prime is 53744513309. The next prime is 53744513323. The reversal of 53744513320 is 2331544735.

It is a self number, because there is not a number n which added to its sum of digits gives 53744513320.

It is not an unprimeable number, because it can be changed into a prime (53744513323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15517909 + ... + 15521371.

It is an arithmetic number, because the mean of its divisors is an integer number (1036407150).

Almost surely, 2^53744513320 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 53744513320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66330057600).

53744513320 is an abundant number, since it is smaller than the sum of its proper divisors (78915601880).

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

53744513320 is a wasteful number, since it uses less digits than its factorization.

53744513320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 53744513320 in words is "fifty-three billion, seven hundred forty-four million, five hundred thirteen thousand, three hundred twenty".