53329842720 has 480 divisors, whose sum is σ = 234655698816. Its totient is φ = 11081318400.

The previous prime is 53329842719. The next prime is 53329842733. The reversal of 53329842720 is 2724892335.

53329842720 is a `hidden beast` number, since 53 + 329 + 8 + 4 + 272 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 971200 + ... + 1024640.

Almost surely, 2^53329842720 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 53329842720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117327849408).

53329842720 is an abundant number, since it is smaller than the sum of its proper divisors (181325856096).

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

53329842720 is a wasteful number, since it uses less digits than its factorization.

53329842720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53486 (or 53469 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 53329842720 in words is "fifty-three billion, three hundred twenty-nine million, eight hundred forty-two thousand, seven hundred twenty".