285055564 has 24 divisors (see below), whose sum is σ = 513515520. Its totient is φ = 138385296.

The previous prime is 285055553. The next prime is 285055567. The reversal of 285055564 is 465550582.

It is not an unprimeable number, because it can be changed into a prime (285055567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17907 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (21396480).

Almost surely, 2^285055564 is an apocalyptic number.

It is an amenable number.

285055564 is a deficient number, since it is larger than the sum of its proper divisors (228459956).

285055564 is a wasteful number, since it uses less digits than its factorization.

285055564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12117 (or 12115 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The square root of 285055564 is about 16883.5885995839. The cubic root of 285055564 is about 658.1272007669.

The spelling of 285055564 in words is "two hundred eighty-five million, fifty-five thousand, five hundred sixty-four".