285526 has 8 divisors (see below), whose sum is σ = 430560. Its totient is φ = 142008.

The previous prime is 285521. The next prime is 285533. The reversal of 285526 is 625582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 285494 and 285503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285521) 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, 540 + ... + 928.

It is an arithmetic number, because the mean of its divisors is an integer number (53820).

2²⁸⁵⁵²⁶ is an apocalyptic number.

285526 is a deficient number, since it is larger than the sum of its proper divisors (145034).

285526 is a wasteful number, since it uses less digits than its factorization.

285526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its digits is 4800, while the sum is 28.

The square root of 285526 is about 534.3463296402. The cubic root of 285526 is about 65.8489044334.

The spelling of 285526 in words is "two hundred eighty-five thousand, five hundred twenty-six".