53003688 has 64 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 16505856.

The previous prime is 53003659. The next prime is 53003719. The reversal of 53003688 is 88630035.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66106 + ... + 66902.

It is an arithmetic number, because the mean of its divisors is an integer number (2208465).

Almost surely, 2^53003688 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 53003688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70670880).

53003688 is an abundant number, since it is smaller than the sum of its proper divisors (88338072).

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

53003688 is a wasteful number, since it uses less digits than its factorization.

53003688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 53003688 is about 7280.3631777543. The cubic root of 53003688 is about 375.6372879130.

The spelling of 53003688 in words is "fifty-three million, three thousand, six hundred eighty-eight".