52688384 has 80 divisors (see below), whose sum is σ = 122792736. Its totient is φ = 22118400.

The previous prime is 52688381. The next prime is 52688401. The reversal of 52688384 is 48388625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52688381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218504 + ... + 218744.

Almost surely, 2^52688384 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 52688384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61396368).

52688384 is an abundant number, since it is smaller than the sum of its proper divisors (70104352).

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

52688384 is an equidigital number, since it uses as much as digits as its factorization.

52688384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 311 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 52688384 is about 7258.6764633782. The cubic root of 52688384 is about 374.8909525891.

The spelling of 52688384 in words is "fifty-two million, six hundred eighty-eight thousand, three hundred eighty-four".