255280252805 has 8 divisors (see below), whose sum is σ = 306339678744. Its totient is φ = 204221952000.

The previous prime is 255280252793. The next prime is 255280252807. The reversal of 255280252805 is 508252082552.

It can be written as a sum of positive squares in 4 ways, for example, as 10248322756 + 245031930049 = 101234^2 + 495007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255280252805 - 2¹² = 255280248709 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 (255280252807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344405 + ... + 793205.

It is an arithmetic number, because the mean of its divisors is an integer number (38292459843).

Almost surely, 2^255280252805 is an apocalyptic number.

It is an amenable number.

255280252805 is a deficient number, since it is larger than the sum of its proper divisors (51059425939).

255280252805 is a wasteful number, since it uses less digits than its factorization.

255280252805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562567.

The product of its (nonzero) digits is 640000, while the sum is 44.

The spelling of 255280252805 in words is "two hundred fifty-five billion, two hundred eighty million, two hundred fifty-two thousand, eight hundred five".