255431054311 has 4 divisors (see below), whose sum is σ = 261371311432. Its totient is φ = 249490797192.

The previous prime is 255431054303. The next prime is 255431054341. The reversal of 255431054311 is 113450134552.

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 255431054311 - 2³ = 255431054303 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 (255431054341) 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, 2970128496 + ... + 2970128581.

It is an arithmetic number, because the mean of its divisors is an integer number (65342827858).

Almost surely, 2^255431054311 is an apocalyptic number.

255431054311 is a deficient number, since it is larger than the sum of its proper divisors (5940257121).

255431054311 is an equidigital number, since it uses as much as digits as its factorization.

255431054311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940257120.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 255431054311 its reverse (113450134552), we get a palindrome (368881188863).

The spelling of 255431054311 in words is "two hundred fifty-five billion, four hundred thirty-one million, fifty-four thousand, three hundred eleven".