255385766 has 8 divisors (see below), whose sum is σ = 393432240. Its totient is φ = 124241688.

The previous prime is 255385759. The next prime is 255385769. The reversal of 255385766 is 667583552.

255385766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255385766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255385769) 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, 1725506 + ... + 1725653.

It is an arithmetic number, because the mean of its divisors is an integer number (49179030).

Almost surely, 2^255385766 is an apocalyptic number.

255385766 is a deficient number, since it is larger than the sum of its proper divisors (138046474).

255385766 is a wasteful number, since it uses less digits than its factorization.

255385766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451198.

The product of its digits is 1512000, while the sum is 47.

The square root of 255385766 is about 15980.7936598906. The cubic root of 255385766 is about 634.4521829973.

The spelling of 255385766 in words is "two hundred fifty-five million, three hundred eighty-five thousand, seven hundred sixty-six".