53803 has 4 divisors (see below), whose sum is σ = 54288.
Its totient is φ = 53320.
The previous prime is 53791. The next prime is 53813. The reversal of 53803 is 30835.
53803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-53803 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (53813) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18 + ... + 328.
It is an arithmetic number, because the mean of its divisors is an integer number (13572).
253803 is an apocalyptic number.
53803 is a deficient number, since it is larger than the sum of its proper divisors (485).
53803 is a wasteful number, since it uses less digits than its factorization.
53803 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 484.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 53803 is about 231.9547369639.
The cubic root of 53803 is about 37.7516117026.
The spelling of 53803 in words is "fifty-three thousand, eight hundred three".