256023323 has 4 divisors (see below), whose sum is σ = 256059048. Its totient is φ = 255987600.

The previous prime is 256023319. The next prime is 256023329. The reversal of 256023323 is 323320652.

It is a happy number.

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 256023323 - 2² = 256023319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256023292 and 256023301.

It is not an unprimeable number, because it can be changed into a prime (256023329) 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, 2978 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (64014762).

Almost surely, 2^256023323 is an apocalyptic number.

256023323 is a deficient number, since it is larger than the sum of its proper divisors (35725).

256023323 is an equidigital number, since it uses as much as digits as its factorization.

256023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35724.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 256023323 is about 16000.7288271503. The cubic root of 256023323 is about 634.9797029906.

Adding to 256023323 its reverse (323320652), we get a palindrome (579343975).

The spelling of 256023323 in words is "two hundred fifty-six million, twenty-three thousand, three hundred twenty-three".