53397744 has 80 divisors (see below), whose sum is σ = 144824064. Its totient is φ = 16934400.

The previous prime is 53397737. The next prime is 53397761. The reversal of 53397744 is 44779335.

53397744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (317520) is a multiple of the sum of its prime divisors (720).

It is a junction number, because it is equal to n+sod(n) for n = 53397696 and 53397705.

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, 84309 + ... + 84939.

Almost surely, 2^53397744 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 53397744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72412032).

53397744 is an abundant number, since it is smaller than the sum of its proper divisors (91426320).

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

53397744 is a wasteful number, since it uses less digits than its factorization.

53397744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 720 counting only the distinct ones).

The product of its digits is 317520, while the sum is 42.

The square root of 53397744 is about 7307.3759996322. The cubic root of 53397744 is about 376.5658824866.

The spelling of 53397744 in words is "fifty-three million, three hundred ninety-seven thousand, seven hundred forty-four".