285572 has 36 divisors (see below), whose sum is σ = 612864. Its totient is φ = 115920.

The previous prime is 285569. The next prime is 285599. The reversal of 285572 is 275582.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6053 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (17024).

2²⁸⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306432).

285572 is an abundant number, since it is smaller than the sum of its proper divisors (327292).

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

285572 is a wasteful number, since it uses less digits than its factorization.

285572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 87 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 285572 is about 534.3893711518. The cubic root of 285572 is about 65.8524404651.

Subtracting from 285572 its product of digits (5600), we obtain a palindrome (279972).

The spelling of 285572 in words is "two hundred eighty-five thousand, five hundred seventy-two".