323256253 has 4 divisors (see below), whose sum is σ = 340269760. Its totient is φ = 306242748.

The previous prime is 323256239. The next prime is 323256287. The reversal of 323256253 is 352652323.

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-323256253 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 (323256223) 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, 8506725 + ... + 8506762.

It is an arithmetic number, because the mean of its divisors is an integer number (85067440).

Almost surely, 2^323256253 is an apocalyptic number.

It is an amenable number.

323256253 is a deficient number, since it is larger than the sum of its proper divisors (17013507).

323256253 is a wasteful number, since it uses less digits than its factorization.

323256253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17013506.

The product of its digits is 32400, while the sum is 31.

The square root of 323256253 is about 17979.3284913536. The cubic root of 323256253 is about 686.3026010468.

The spelling of 323256253 in words is "three hundred twenty-three million, two hundred fifty-six thousand, two hundred fifty-three".