52133328 has 80 divisors (see below), whose sum is σ = 161170240. Its totient is φ = 16039296.

The previous prime is 52133327. The next prime is 52133357. The reversal of 52133328 is 82333125.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52133327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975 + ... + 10257.

It is an arithmetic number, because the mean of its divisors is an integer number (2014628).

Almost surely, 2^52133328 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 52133328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80585120).

52133328 is an abundant number, since it is smaller than the sum of its proper divisors (109036912).

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

52133328 is a wasteful number, since it uses less digits than its factorization.

52133328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313 (or 9301 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 52133328 is about 7220.3412661730. The cubic root of 52133328 is about 373.5698487131.

The spelling of 52133328 in words is "fifty-two million, one hundred thirty-three thousand, three hundred twenty-eight".