53903 has 4 divisors (see below), whose sum is σ = 56760. Its totient is φ = 51048.

The previous prime is 53899. The next prime is 53917. The reversal of 53903 is 30935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53903 - 2² = 53899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53923) 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, 1400 + ... + 1437.

It is an arithmetic number, because the mean of its divisors is an integer number (14190).

2⁵³⁹⁰³ is an apocalyptic number.

53903 is a deficient number, since it is larger than the sum of its proper divisors (2857).

53903 is a wasteful number, since it uses less digits than its factorization.

53903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 53903 is about 232.1701961924. The cubic root of 53903 is about 37.7749860169.

The spelling of 53903 in words is "fifty-three thousand, nine hundred three".