255606566 has 8 divisors (see below), whose sum is σ = 384164640. Its totient is φ = 127551688.

The previous prime is 255606529. The next prime is 255606569. The reversal of 255606566 is 665606552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255606569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124526 + ... + 126561.

It is an arithmetic number, because the mean of its divisors is an integer number (48020580).

Almost surely, 2^255606566 is an apocalyptic number.

255606566 is a deficient number, since it is larger than the sum of its proper divisors (128558074).

255606566 is a wasteful number, since it uses less digits than its factorization.

255606566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251598.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 255606566 is about 15987.7004600412. The cubic root of 255606566 is about 634.6349740376.

The spelling of 255606566 in words is "two hundred fifty-five million, six hundred six thousand, five hundred sixty-six".