52133312 has 112 divisors (see below), whose sum is σ = 131673600. Its totient is φ = 19891200.

The previous prime is 52133299. The next prime is 52133317. The reversal of 52133312 is 21333125.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52133317) 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, 349814 + ... + 349962.

Almost surely, 2^52133312 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 52133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65836800).

52133312 is an abundant number, since it is smaller than the sum of its proper divisors (79540288).

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

52133312 is a wasteful number, since it uses less digits than its factorization.

52133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 240 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 52133312 is about 7220.3401581920. The cubic root of 52133312 is about 373.5698104962.

Adding to 52133312 its reverse (21333125), we get a palindrome (73466437).

It can be divided in two parts, 521 and 33312, that added together give a palindrome (33833).

The spelling of 52133312 in words is "fifty-two million, one hundred thirty-three thousand, three hundred twelve".