253333 has 4 divisors (see below), whose sum is σ = 257548. Its totient is φ = 249120.

The previous prime is 253321. The next prime is 253343. The reversal of 253333 is 333352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5329 + 248004 = 73^2 + 498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253333 is a prime.

It is a Duffinian number.

253333 is a modest number, since divided by 333 gives 253 as remainder.

253333 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 253333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253343) 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, 2016 + ... + 2137.

It is an arithmetic number, because the mean of its divisors is an integer number (64387).

2²⁵³³³³ is an apocalyptic number.

It is an amenable number.

253333 is a deficient number, since it is larger than the sum of its proper divisors (4215).

253333 is an equidigital number, since it uses as much as digits as its factorization.

253333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214.

The product of its digits is 810, while the sum is 19.

The square root of 253333 is about 503.3219645515. The cubic root of 253333 is about 63.2747719681.

Adding to 253333 its sum of digits (19), we get a palindrome (253352).

Adding to 253333 its reverse (333352), we get a palindrome (586685).

It can be divided in two parts, 2 and 53333, that added together give a palindrome (53335).

The spelling of 253333 in words is "two hundred fifty-three thousand, three hundred thirty-three".