53309733120 has 288 divisors, whose sum is σ = 216201565440. Its totient is φ = 12185026560.

The previous prime is 53309733097. The next prime is 53309733131. The reversal of 53309733120 is 2133790335.

53309733120 is a `hidden beast` number, since 5 + 330 + 9 + 7 + 3 + 312 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131740 + ... + 352100.

It is an arithmetic number, because the mean of its divisors is an integer number (750699880).

Almost surely, 2^53309733120 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 53309733120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108100782720).

53309733120 is an abundant number, since it is smaller than the sum of its proper divisors (162891832320).

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

53309733120 is a wasteful number, since it uses less digits than its factorization.

53309733120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220398 (or 220378 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The spelling of 53309733120 in words is "fifty-three billion, three hundred nine million, seven hundred thirty-three thousand, one hundred twenty".