53388288 has 88 divisors (see below), whose sum is σ = 158192160. Its totient is φ = 17786880.

The previous prime is 53388281. The next prime is 53388289. The reversal of 53388288 is 88288335.

It is not an unprimeable number, because it can be changed into a prime (53388281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26683 + ... + 28613.

Almost surely, 2^53388288 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 53388288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79096080).

53388288 is an abundant number, since it is smaller than the sum of its proper divisors (104803872).

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

53388288 is a wasteful number, since it uses less digits than its factorization.

53388288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960 (or 1936 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 53388288 is about 7306.7289535058. The cubic root of 53388288 is about 376.5436529757.

The spelling of 53388288 in words is "fifty-three million, three hundred eighty-eight thousand, two hundred eighty-eight".