253242253 has 4 divisors (see below), whose sum is σ = 276264288. Its totient is φ = 230220220.

The previous prime is 253242247. The next prime is 253242271. The reversal of 253242253 is 352242352.

It is a happy number.

253242253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-253242253 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 (253242233) 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, 11511001 + ... + 11511022.

It is an arithmetic number, because the mean of its divisors is an integer number (69066072).

Almost surely, 2^253242253 is an apocalyptic number.

It is an amenable number.

253242253 is a deficient number, since it is larger than the sum of its proper divisors (23022035).

253242253 is a wasteful number, since it uses less digits than its factorization.

253242253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23022034.

The product of its digits is 14400, while the sum is 28.

The square root of 253242253 is about 15913.5870563490. The cubic root of 253242253 is about 632.6721579829.

Subtracting 253242253 from its reverse (352242352), we obtain a palindrome (99000099).

The spelling of 253242253 in words is "two hundred fifty-three million, two hundred forty-two thousand, two hundred fifty-three".