53128536 has 64 divisors (see below), whose sum is σ = 141562080. Its totient is φ = 16558080.

The previous prime is 53128529. The next prime is 53128561. The reversal of 53128536 is 63582135.

53128536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 53128497 and 53128506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80046 + ... + 80706.

Almost surely, 2^53128536 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 53128536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70781040).

53128536 is an abundant number, since it is smaller than the sum of its proper divisors (88433544).

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

53128536 is a wasteful number, since it uses less digits than its factorization.

53128536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 880 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 53128536 is about 7288.9324321193. The cubic root of 53128536 is about 375.9319893589.

The spelling of 53128536 in words is "fifty-three million, one hundred twenty-eight thousand, five hundred thirty-six".