255813578 has 8 divisors (see below), whose sum is σ = 383796768. Its totient is φ = 127881324.

The previous prime is 255813577. The next prime is 255813601. The reversal of 255813578 is 875318552.

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

It is not an unprimeable number, because it can be changed into a prime (255813577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4475 + ... + 23057.

It is an arithmetic number, because the mean of its divisors is an integer number (47974596).

Almost surely, 2^255813578 is an apocalyptic number.

255813578 is a deficient number, since it is larger than the sum of its proper divisors (127983190).

255813578 is a wasteful number, since it uses less digits than its factorization.

255813578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25468.

The product of its digits is 336000, while the sum is 44.

The square root of 255813578 is about 15994.1732515313. The cubic root of 255813578 is about 634.8062549850.

The spelling of 255813578 in words is "two hundred fifty-five million, eight hundred thirteen thousand, five hundred seventy-eight".