255085316217831 has 16 divisors (see below), whose sum is σ = 371036261980800. Its totient is φ = 154595880196320.

The previous prime is 255085316217817. The next prime is 255085316217839. The reversal of 255085316217831 is 138712613580552.

It is not a de Polignac number, because 255085316217831 - 2⁴¹ = 252886292962279 is a prime.

It is a super-2 number, since 2×255085316217831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255085316217839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27978580 + ... + 35957913.

It is an arithmetic number, because the mean of its divisors is an integer number (23189766373800).

Almost surely, 2^{255085316217831} is an apocalyptic number.

255085316217831 is a deficient number, since it is larger than the sum of its proper divisors (115950945762969).

255085316217831 is a wasteful number, since it uses less digits than its factorization.

255085316217831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64057406.

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 255085316217831 in words is "two hundred fifty-five trillion, eighty-five billion, three hundred sixteen million, two hundred seventeen thousand, eight hundred thirty-one".