255481966 has 8 divisors (see below), whose sum is σ = 393580440. Its totient is φ = 124288488.

The previous prime is 255481913. The next prime is 255481979. The reversal of 255481966 is 669184552.

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

It is a congruent number.

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, 1726156 + ... + 1726303.

It is an arithmetic number, because the mean of its divisors is an integer number (49197555).

Almost surely, 2^255481966 is an apocalyptic number.

255481966 is a deficient number, since it is larger than the sum of its proper divisors (138098474).

255481966 is a wasteful number, since it uses less digits than its factorization.

255481966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452498.

The product of its digits is 518400, while the sum is 46.

The square root of 255481966 is about 15983.8032395297. The cubic root of 255481966 is about 634.5318358809.

The spelling of 255481966 in words is "two hundred fifty-five million, four hundred eighty-one thousand, nine hundred sixty-six".