53328684528 has 160 divisors (see below), whose sum is σ = 175038796800. Its totient is φ = 15228221184.

The previous prime is 53328684517. The next prime is 53328684529. The reversal of 53328684528 is 82548682335.

It is a happy number.

53328684528 is a `hidden beast` number, since 5 + 3 + 32 + 8 + 6 + 84 + 528 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53328684529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7051213 + ... + 7058771.

It is an arithmetic number, because the mean of its divisors is an integer number (1093992480).

Almost surely, 2^53328684528 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 53328684528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87519398400).

53328684528 is an abundant number, since it is smaller than the sum of its proper divisors (121710112272).

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

53328684528 is a wasteful number, since it uses less digits than its factorization.

53328684528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916 (or 9904 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 54.

The spelling of 53328684528 in words is "fifty-three billion, three hundred twenty-eight million, six hundred eighty-four thousand, five hundred twenty-eight".