53232768 has 128 divisors (see below), whose sum is σ = 160017600. Its totient is φ = 17418240.

The previous prime is 53232761. The next prime is 53232791. The reversal of 53232768 is 86723235.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53232761) 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, 252183 + ... + 252393.

Almost surely, 2^53232768 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 53232768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80008800).

53232768 is an abundant number, since it is smaller than the sum of its proper divisors (106784832).

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

53232768 is a wasteful number, since it uses less digits than its factorization.

53232768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 289 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 53232768 is about 7296.0789469413. The cubic root of 53232768 is about 376.1776736876.

The spelling of 53232768 in words is "fifty-three million, two hundred thirty-two thousand, seven hundred sixty-eight".