255286081 has 6 divisors (see below), whose sum is σ = 256048130. Its totient is φ = 254526048.

The previous prime is 255286063. The next prime is 255286091. The reversal of 255286081 is 180682552.

It can be written as a sum of positive squares in only one way, i.e., 198359056 + 56927025 = 14084^2 + 7545^2 .

It is not a de Polignac number, because 255286081 - 2²³ = 246897473 is a prime.

It is a super-2 number, since 2×255286081² = 130341966304677122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255286081.

It is not an unprimeable number, because it can be changed into a prime (255286061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252505 + ... + 253513.

It is a 335-hyperperfect number.

Almost surely, 2^255286081 is an apocalyptic number.

It is an amenable number.

255286081 is a deficient number, since it is larger than the sum of its proper divisors (762049).

255286081 is an frugal number, since it uses more digits than its factorization.

255286081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 255286081 is about 15977.6744553142. The cubic root of 255286081 is about 634.3696234542.

The spelling of 255286081 in words is "two hundred fifty-five million, two hundred eighty-six thousand, eighty-one".