255471688 has 16 divisors (see below), whose sum is σ = 479969280. Its totient is φ = 127479888.

The previous prime is 255471679. The next prime is 255471691. The reversal of 255471688 is 886174552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27720 + ... + 35767.

It is an arithmetic number, because the mean of its divisors is an integer number (29998080).

Almost surely, 2^255471688 is an apocalyptic number.

It is an amenable number.

255471688 is a deficient number, since it is larger than the sum of its proper divisors (224497592).

255471688 is a wasteful number, since it uses less digits than its factorization.

255471688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63996 (or 63992 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 255471688 is about 15983.4817233292. The cubic root of 255471688 is about 634.5233267275.

The spelling of 255471688 in words is "two hundred fifty-five million, four hundred seventy-one thousand, six hundred eighty-eight".