53284320 has 72 divisors (see below), whose sum is σ = 181837656. Its totient is φ = 14208768.

The previous prime is 53284313. The next prime is 53284321. The reversal of 53284320 is 2348235.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53284321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17062 + ... + 19941.

It is an arithmetic number, because the mean of its divisors is an integer number (2525523).

Almost surely, 2^53284320 is an apocalyptic number.

It is an amenable number.

53284320 is an abundant number, since it is smaller than the sum of its proper divisors (128553336).

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

53284320 is a wasteful number, since it uses less digits than its factorization.

53284320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37024 (or 37013 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 53284320 is about 7299.6109485369. The cubic root of 53284320 is about 376.2990679302.

The spelling of 53284320 in words is "fifty-three million, two hundred eighty-four thousand, three hundred twenty".