255986968 has 8 divisors (see below), whose sum is σ = 479975580. Its totient is φ = 127993480.

The previous prime is 255986959. The next prime is 255986971. The reversal of 255986968 is 869689552.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15999178 + ... + 15999193.

Almost surely, 2^255986968 is an apocalyptic number.

It is an amenable number.

255986968 is a deficient number, since it is larger than the sum of its proper divisors (223988612).

255986968 is a wasteful number, since it uses less digits than its factorization.

255986968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31998377 (or 31998373 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 58.

The square root of 255986968 is about 15999.5927448170. The cubic root of 255986968 is about 634.9496461198.

The spelling of 255986968 in words is "two hundred fifty-five million, nine hundred eighty-six thousand, nine hundred sixty-eight".