255501531265 has 8 divisors (see below), whose sum is σ = 314079931368. Its totient is φ = 199415829120.

The previous prime is 255501531253. The next prime is 255501531301. The reversal of 255501531265 is 562135105552.

It can be written as a sum of positive squares in 4 ways, for example, as 7769364736 + 247732166529 = 88144^2 + 497727^2 .

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

It is not a de Polignac number, because 255501531265 - 2¹³ = 255501523073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623174262 + ... + 623174671.

It is an arithmetic number, because the mean of its divisors is an integer number (39259991421).

Almost surely, 2^255501531265 is an apocalyptic number.

It is an amenable number.

255501531265 is a deficient number, since it is larger than the sum of its proper divisors (58578400103).

255501531265 is a wasteful number, since it uses less digits than its factorization.

255501531265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246348979.

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 255501531265 in words is "two hundred fifty-five billion, five hundred one million, five hundred thirty-one thousand, two hundred sixty-five".