255320423 has 4 divisors (see below), whose sum is σ = 268758360. Its totient is φ = 241882488.

The previous prime is 255320411. The next prime is 255320431. The reversal of 255320423 is 324023552.

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 255320423 - 2⁸ = 255320167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255320392 and 255320401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255320453) 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, 6718940 + ... + 6718977.

It is an arithmetic number, because the mean of its divisors is an integer number (67189590).

Almost surely, 2^255320423 is an apocalyptic number.

255320423 is a deficient number, since it is larger than the sum of its proper divisors (13437937).

255320423 is a wasteful number, since it uses less digits than its factorization.

255320423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437936.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 255320423 is about 15978.7491062348. The cubic root of 255320423 is about 634.3980680717.

Adding to 255320423 its reverse (324023552), we get a palindrome (579343975).

The spelling of 255320423 in words is "two hundred fifty-five million, three hundred twenty thousand, four hundred twenty-three".