255431279725 has 12 divisors (see below), whose sum is σ = 317119666336. Its totient is φ = 204096714480.

The previous prime is 255431279723. The next prime is 255431279797. The reversal of 255431279725 is 527972134552.

255431279725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255431279725 - 2¹ = 255431279723 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 (255431279723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6186747 + ... + 6227896.

Almost surely, 2^255431279725 is an apocalyptic number.

255431279725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255431279725 is a deficient number, since it is larger than the sum of its proper divisors (61688386611).

255431279725 is a wasteful number, since it uses less digits than its factorization.

255431279725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12415476 (or 12415471 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 52.

The spelling of 255431279725 in words is "two hundred fifty-five billion, four hundred thirty-one million, two hundred seventy-nine thousand, seven hundred twenty-five".