255420366 has 8 divisors (see below), whose sum is σ = 510840744. Its totient is φ = 85140120.

The previous prime is 255420343. The next prime is 255420379. The reversal of 255420366 is 663024552.

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

255420366 is an admirable number.

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, 21285025 + ... + 21285036.

It is an arithmetic number, because the mean of its divisors is an integer number (63855093).

Almost surely, 2^255420366 is an apocalyptic number.

255420366 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.

255420366 is a wasteful number, since it uses less digits than its factorization.

255420366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42570066.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 255420366 is about 15981.8761727151. The cubic root of 255420366 is about 634.4808338427.

The spelling of 255420366 in words is "two hundred fifty-five million, four hundred twenty thousand, three hundred sixty-six".