255763081 has 4 divisors (see below), whose sum is σ = 292300672. Its totient is φ = 219225492.

The previous prime is 255763069. The next prime is 255763091. The reversal of 255763081 is 180367552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255763081 - 2⁷ = 255762953 is a prime.

It is a super-2 number, since 2×255763081² = 130829507205225122, 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 255763081.

It is not an unprimeable number, because it can be changed into a prime (255763031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18268785 + ... + 18268798.

It is an arithmetic number, because the mean of its divisors is an integer number (73075168).

Almost surely, 2^255763081 is an apocalyptic number.

It is an amenable number.

255763081 is a deficient number, since it is larger than the sum of its proper divisors (36537591).

255763081 is an equidigital number, since it uses as much as digits as its factorization.

255763081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36537590.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 255763081 is about 15992.5945674865. The cubic root of 255763081 is about 634.7644824813.

The spelling of 255763081 in words is "two hundred fifty-five million, seven hundred sixty-three thousand, eighty-one".