285059885 has 16 divisors (see below), whose sum is σ = 375338880. Its totient is φ = 206111040.

The previous prime is 285059881. The next prime is 285059891. The reversal of 285059885 is 588950582.

It is not a de Polignac number, because 285059885 - 2² = 285059881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285059881) 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 15 ways as a sum of consecutive naturals, for example, 5465 + ... + 24494.

It is an arithmetic number, because the mean of its divisors is an integer number (23458680).

Almost surely, 2^285059885 is an apocalyptic number.

It is an amenable number.

285059885 is a deficient number, since it is larger than the sum of its proper divisors (90278995).

285059885 is a wasteful number, since it uses less digits than its factorization.

285059885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30148.

The product of its (nonzero) digits is 1152000, while the sum is 50.

The square root of 285059885 is about 16883.7165636006. The cubic root of 285059885 is about 658.1305261458.

The spelling of 285059885 in words is "two hundred eighty-five million, fifty-nine thousand, eight hundred eighty-five".