255131423 has 4 divisors (see below), whose sum is σ = 258626448. Its totient is φ = 251636400.

The previous prime is 255131417. The next prime is 255131467. The reversal of 255131423 is 324131552.

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 255131423 - 2¹⁶ = 255065887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255131392 and 255131401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255131413) 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, 1747403 + ... + 1747548.

It is an arithmetic number, because the mean of its divisors is an integer number (64656612).

Almost surely, 2^255131423 is an apocalyptic number.

255131423 is a deficient number, since it is larger than the sum of its proper divisors (3495025).

255131423 is an equidigital number, since it uses as much as digits as its factorization.

255131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495024.

The product of its digits is 3600, while the sum is 26.

The square root of 255131423 is about 15972.8339063549. The cubic root of 255131423 is about 634.2414924883.

Adding to 255131423 its reverse (324131552), we get a palindrome (579262975).

The spelling of 255131423 in words is "two hundred fifty-five million, one hundred thirty-one thousand, four hundred twenty-three".