253303 has 4 divisors (see below), whose sum is σ = 254320. Its totient is φ = 252288.

The previous prime is 253273. The next prime is 253307. The reversal of 253303 is 303352.

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 not a de Polignac number, because 253303 - 2¹⁷ = 122231 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253307) 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, 151 + ... + 727.

It is an arithmetic number, because the mean of its divisors is an integer number (63580).

2²⁵³³⁰³ is an apocalyptic number.

253303 is a deficient number, since it is larger than the sum of its proper divisors (1017).

253303 is an equidigital number, since it uses as much as digits as its factorization.

253303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 253303 is about 503.2921616715. The cubic root of 253303 is about 63.2722741778.

Adding to 253303 its reverse (303352), we get a palindrome (556655).

The spelling of 253303 in words is "two hundred fifty-three thousand, three hundred three".