285725536 has 24 divisors (see below), whose sum is σ = 563298624. Its totient is φ = 142665600.

The previous prime is 285725533. The next prime is 285725551. The reversal of 285725536 is 635527582.

It is a junction number, because it is equal to n+sod(n) for n = 285725492 and 285725501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285725533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18961 + ... + 30511.

It is an arithmetic number, because the mean of its divisors is an integer number (23470776).

Almost surely, 2^285725536 is an apocalyptic number.

It is an amenable number.

285725536 is a deficient number, since it is larger than the sum of its proper divisors (277573088).

285725536 is a wasteful number, since it uses less digits than its factorization.

285725536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12334 (or 12326 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 285725536 is about 16903.4178792338. The cubic root of 285725536 is about 658.6424006825.

The spelling of 285725536 in words is "two hundred eighty-five million, seven hundred twenty-five thousand, five hundred thirty-six".