53317568 has 28 divisors (see below), whose sum is σ = 106786680. Its totient is φ = 26410752.

The previous prime is 53317543. The next prime is 53317571. The reversal of 53317568 is 86571335.

53317568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 3155 + ... + 10797.

It is an arithmetic number, because the mean of its divisors is an integer number (3813810).

Almost surely, 2^53317568 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 53317568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53393340).

53317568 is an abundant number, since it is smaller than the sum of its proper divisors (53469112).

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

53317568 is a wasteful number, since it uses less digits than its factorization.

53317568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764 (or 7754 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 53317568 is about 7301.8879750377. The cubic root of 53317568 is about 376.3773185306.

The spelling of 53317568 in words is "fifty-three million, three hundred seventeen thousand, five hundred sixty-eight".