255966378 has 8 divisors (see below), whose sum is σ = 511932768. Its totient is φ = 85322124.

The previous prime is 255966377. The next prime is 255966419. The reversal of 255966378 is 873669552.

It is a happy number.

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

255966378 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 255966378.

It is not an unprimeable number, because it can be changed into a prime (255966377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21330526 + ... + 21330537.

It is an arithmetic number, because the mean of its divisors is an integer number (63991596).

Almost surely, 2^255966378 is an apocalyptic number.

255966378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255966378 is a wasteful number, since it uses less digits than its factorization.

255966378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42661068.

The product of its digits is 2721600, while the sum is 51.

The square root of 255966378 is about 15998.9492779995. The cubic root of 255966378 is about 634.9326218629.

The spelling of 255966378 in words is "two hundred fifty-five million, nine hundred sixty-six thousand, three hundred seventy-eight".