255258681 has 16 divisors (see below), whose sum is σ = 351751680. Its totient is φ = 164482560.

The previous prime is 255258649. The next prime is 255258713. The reversal of 255258681 is 186852552.

It is an interprime number because it is at equal distance from previous prime (255258649) and next prime (255258713).

It is not a de Polignac number, because 255258681 - 2⁵ = 255258649 is a prime.

It is a super-2 number, since 2×255258681² = 130313988451719522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255258611) 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, 134185 + ... + 136073.

It is an arithmetic number, because the mean of its divisors is an integer number (21984480).

Almost surely, 2^255258681 is an apocalyptic number.

It is an amenable number.

255258681 is a deficient number, since it is larger than the sum of its proper divisors (96492999).

255258681 is a wasteful number, since it uses less digits than its factorization.

255258681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376.

The product of its digits is 192000, while the sum is 42.

The square root of 255258681 is about 15976.8169858705. The cubic root of 255258681 is about 634.3469268915.

The spelling of 255258681 in words is "two hundred fifty-five million, two hundred fifty-eight thousand, six hundred eighty-one".