53509688 has 32 divisors (see below), whose sum is σ = 104189760. Its totient is φ = 25745280.

The previous prime is 53509679. The next prime is 53509721. The reversal of 53509688 is 88690535.

53509688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

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 7 ways as a sum of consecutive naturals, for example, 21770 + ... + 24102.

It is an arithmetic number, because the mean of its divisors is an integer number (3255930).

Almost surely, 2^53509688 is an apocalyptic number.

It is an amenable number.

53509688 is a deficient number, since it is larger than the sum of its proper divisors (50680072).

53509688 is a wasteful number, since it uses less digits than its factorization.

53509688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2443 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 53509688 is about 7315.0316472316. The cubic root of 53509688 is about 376.8288453297.

The spelling of 53509688 in words is "fifty-three million, five hundred nine thousand, six hundred eighty-eight".