255567881 has 8 divisors (see below), whose sum is σ = 271200960. Its totient is φ = 240311632.

The previous prime is 255567853. The next prime is 255567889. The reversal of 255567881 is 188765552.

It is a happy number.

255567881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255567881 is a prime.

It is a super-2 number, since 2×255567881² = 130629883597660322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255567889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92810 + ... + 95523.

It is an arithmetic number, because the mean of its divisors is an integer number (33900120).

Almost surely, 2^255567881 is an apocalyptic number.

It is an amenable number.

255567881 is a deficient number, since it is larger than the sum of its proper divisors (15633079).

255567881 is a wasteful number, since it uses less digits than its factorization.

255567881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188415.

The product of its digits is 672000, while the sum is 47.

The square root of 255567881 is about 15986.4905779849. The cubic root of 255567881 is about 634.6029559599.

The spelling of 255567881 in words is "two hundred fifty-five million, five hundred sixty-seven thousand, eight hundred eighty-one".