285561752 has 16 divisors (see below), whose sum is σ = 611918160. Its totient is φ = 122383584.

The previous prime is 285561673. The next prime is 285561763. The reversal of 285561752 is 257165582.

It is a congruent number.

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, 2549603 + ... + 2549714.

It is an arithmetic number, because the mean of its divisors is an integer number (38244885).

Almost surely, 2^285561752 is an apocalyptic number.

It is an amenable number.

285561752 is an abundant number, since it is smaller than the sum of its proper divisors (326356408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285561752 is a wasteful number, since it uses less digits than its factorization.

285561752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099330 (or 5099326 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 285561752 is about 16898.5724840887. The cubic root of 285561752 is about 658.5165273156.

The spelling of 285561752 in words is "two hundred eighty-five million, five hundred sixty-one thousand, seven hundred fifty-two".