255676887 has 12 divisors (see below), whose sum is σ = 370379880. Its totient is φ = 169957968.

The previous prime is 255676877. The next prime is 255676907. The reversal of 255676887 is 788676552.

255676887 is a `hidden beast` number, since 2 + 556 + 7 + 6 + 8 + 87 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-255676887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255676807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37812 + ... + 44057.

It is an arithmetic number, because the mean of its divisors is an integer number (30864990).

Almost surely, 2^255676887 is an apocalyptic number.

255676887 is a deficient number, since it is larger than the sum of its proper divisors (114702993).

255676887 is a wasteful number, since it uses less digits than its factorization.

255676887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82222 (or 82219 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 255676887 is about 15989.8995306412. The cubic root of 255676887 is about 634.6931677357.

The spelling of 255676887 in words is "two hundred fifty-five million, six hundred seventy-six thousand, eight hundred eighty-seven".