285755066 has 8 divisors (see below), whose sum is σ = 429347604. Its totient is φ = 142639200.

The previous prime is 285755021. The next prime is 285755089. The reversal of 285755066 is 660557582.

It can be written as a sum of positive squares in 2 ways, for example, as 283417225 + 2337841 = 16835^2 + 1529^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117665 + ... + 120068.

Almost surely, 2^285755066 is an apocalyptic number.

285755066 is a deficient number, since it is larger than the sum of its proper divisors (143592538).

285755066 is a wasteful number, since it uses less digits than its factorization.

285755066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238336.

The product of its (nonzero) digits is 504000, while the sum is 44.

The square root of 285755066 is about 16904.2913486487. The cubic root of 285755066 is about 658.6650903358.

The spelling of 285755066 in words is "two hundred eighty-five million, seven hundred fifty-five thousand, sixty-six".