285532 has 36 divisors (see below), whose sum is σ = 601720. Its totient is φ = 117504.

The previous prime is 285521. The next prime is 285533. The reversal of 285532 is 235582.

It is a junction number, because it is equal to n+sod(n) for n = 285497 and 285506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285533) by changing a digit.

285532 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15019 + ... + 15037.

2²⁸⁵⁵³² is an apocalyptic number.

It is an amenable number.

285532 is an abundant number, since it is smaller than the sum of its proper divisors (316188).

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

285532 is a wasteful number, since it uses less digits than its factorization.

285532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 51 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 285532 is about 534.3519439471. The cubic root of 285532 is about 65.8493656764.

The spelling of 285532 in words is "two hundred eighty-five thousand, five hundred thirty-two".