53315328 has 72 divisors (see below), whose sum is σ = 154820736. Its totient is φ = 16153600.

The previous prime is 53315309. The next prime is 53315347. The reversal of 53315328 is 82351335.

It is an interprime number because it is at equal distance from previous prime (53315309) and next prime (53315347).

It is a junction number, because it is equal to n+sod(n) for n = 53315295 and 53315304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5293 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (2150288).

Almost surely, 2^53315328 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 53315328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77410368).

53315328 is an abundant number, since it is smaller than the sum of its proper divisors (101505408).

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

53315328 is a wasteful number, since it uses less digits than its factorization.

53315328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341 (or 6327 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 53315328 is about 7301.7345884386. The cubic root of 53315328 is about 376.3720476163.

The spelling of 53315328 in words is "fifty-three million, three hundred fifteen thousand, three hundred twenty-eight".