255853607825 has 12 divisors (see below), whose sum is σ = 335920737420. Its totient is φ = 192642716160.

The previous prime is 255853607813. The next prime is 255853607831. The reversal of 255853607825 is 528706358552.

It can be written as a sum of positive squares in 6 ways, for example, as 827597824 + 255026010001 = 28768^2 + 505001^2 .

It is not a de Polignac number, because 255853607825 - 2⁴ = 255853607809 is a prime.

It is a super-2 number, since 2×255853607825² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301003820 + ... + 301004669.

It is an arithmetic number, because the mean of its divisors is an integer number (27993394785).

Almost surely, 2^255853607825 is an apocalyptic number.

255853607825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255853607825 is a deficient number, since it is larger than the sum of its proper divisors (80067129595).

255853607825 is a wasteful number, since it uses less digits than its factorization.

255853607825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602008516 (or 602008511 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 56.

The spelling of 255853607825 in words is "two hundred fifty-five billion, eight hundred fifty-three million, six hundred seven thousand, eight hundred twenty-five".