255645834 has 8 divisors (see below), whose sum is σ = 511291680. Its totient is φ = 85215276.

The previous prime is 255645833. The next prime is 255645877. The reversal of 255645834 is 438546552.

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

255645834 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (255645833) 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, 21303814 + ... + 21303825.

It is an arithmetic number, because the mean of its divisors is an integer number (63911460).

Almost surely, 2^255645834 is an apocalyptic number.

255645834 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.

255645834 is a wasteful number, since it uses less digits than its factorization.

255645834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42607644.

The product of its digits is 576000, while the sum is 42.

The square root of 255645834 is about 15988.9284819215. The cubic root of 255645834 is about 634.6674713380.

The spelling of 255645834 in words is "two hundred fifty-five million, six hundred forty-five thousand, eight hundred thirty-four".