53108736 has 56 divisors (see below), whose sum is σ = 141680184. Its totient is φ = 17694720.

The previous prime is 53108723. The next prime is 53108747. The reversal of 53108736 is 63780135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53108697 and 53108706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23496 + ... + 25656.

Almost surely, 2^53108736 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 53108736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70840092).

53108736 is an abundant number, since it is smaller than the sum of its proper divisors (88571448).

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

53108736 is an equidigital number, since it uses as much as digits as its factorization.

53108736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53108736 is about 7287.5740819562. The cubic root of 53108736 is about 375.8852826433.

The spelling of 53108736 in words is "fifty-three million, one hundred eight thousand, seven hundred thirty-six".