53165568 has 40 divisors (see below), whose sum is σ = 141640488. Its totient is φ = 17721344.

The previous prime is 53165557. The next prime is 53165569. The reversal of 53165568 is 86556135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15771 + ... + 18842.

Almost surely, 2^53165568 is an apocalyptic number.

It is an amenable number.

53165568 is an abundant number, since it is smaller than the sum of its proper divisors (88474920).

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

53165568 is an equidigital number, since it uses as much as digits as its factorization.

53165568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34634 (or 34618 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 53165568 is about 7291.4722793137. The cubic root of 53165568 is about 376.0193139317.

The spelling of 53165568 in words is "fifty-three million, one hundred sixty-five thousand, five hundred sixty-eight".