255782878 has 16 divisors (see below), whose sum is σ = 415668960. Its totient is φ = 117344736.

The previous prime is 255782873. The next prime is 255782881. The reversal of 255782878 is 878287552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255782873) 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, 25113 + ... + 33796.

It is an arithmetic number, because the mean of its divisors is an integer number (25979310).

Almost surely, 2^255782878 is an apocalyptic number.

255782878 is a deficient number, since it is larger than the sum of its proper divisors (159886082).

255782878 is a wasteful number, since it uses less digits than its factorization.

255782878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59091.

The product of its digits is 2508800, while the sum is 52.

The square root of 255782878 is about 15993.2134982311. The cubic root of 255782878 is about 634.7808597580.

The spelling of 255782878 in words is "two hundred fifty-five million, seven hundred eighty-two thousand, eight hundred seventy-eight".