253903 has 4 divisors (see below), whose sum is σ = 273448. Its totient is φ = 234360.

The previous prime is 253901. The next prime is 253907. The reversal of 253903 is 309352.

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 253903 - 2¹ = 253901 is a prime.

It is a Duffinian number.

253903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253901) 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, 9753 + ... + 9778.

It is an arithmetic number, because the mean of its divisors is an integer number (68362).

2²⁵³⁹⁰³ is an apocalyptic number.

253903 is a deficient number, since it is larger than the sum of its proper divisors (19545).

253903 is a wasteful number, since it uses less digits than its factorization.

253903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19544.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 253903 is about 503.8878843552. The cubic root of 253903 is about 63.3221925618.

It can be divided in two parts, 253 and 903, that added together give a square (1156 = 34²).

The spelling of 253903 in words is "two hundred fifty-three thousand, nine hundred three".