255245234665 has 24 divisors (see below), whose sum is σ = 310019355288. Its totient is φ = 201742295040.

The previous prime is 255245234593. The next prime is 255245234683. The reversal of 255245234665 is 566432542552.

It can be written as a sum of positive squares in 12 ways, for example, as 50118672384 + 205126562281 = 223872^2 + 452909^2 .

It is not a de Polignac number, because 255245234665 - 2¹⁷ = 255245103593 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 92713929 + ... + 92716681.

It is an arithmetic number, because the mean of its divisors is an integer number (12917473137).

Almost surely, 2^255245234665 is an apocalyptic number.

It is an amenable number.

255245234665 is a deficient number, since it is larger than the sum of its proper divisors (54774120623).

255245234665 is an equidigital number, since it uses as much as digits as its factorization.

255245234665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5188 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 49.

The spelling of 255245234665 in words is "two hundred fifty-five billion, two hundred forty-five million, two hundred thirty-four thousand, six hundred sixty-five".