253333441 has 4 divisors (see below), whose sum is σ = 266666800. Its totient is φ = 240000084.

The previous prime is 253333417. The next prime is 253333453. The reversal of 253333441 is 144333352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253333441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253333411) 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, 6666651 + ... + 6666688.

It is an arithmetic number, because the mean of its divisors is an integer number (66666700).

Almost surely, 2^253333441 is an apocalyptic number.

It is an amenable number.

253333441 is a deficient number, since it is larger than the sum of its proper divisors (13333359).

253333441 is a wasteful number, since it uses less digits than its factorization.

253333441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333358.

The product of its digits is 12960, while the sum is 28.

The square root of 253333441 is about 15916.4518973294. The cubic root of 253333441 is about 632.7480868412.

Adding to 253333441 its reverse (144333352), we get a palindrome (397666793).

The spelling of 253333441 in words is "two hundred fifty-three million, three hundred thirty-three thousand, four hundred forty-one".