266562 has 24 divisors (see below), whose sum is σ = 589680. Its totient is φ = 87000.

The previous prime is 266549. The next prime is 266587. The reversal of 266562 is 265662.

266562 is a `hidden beast` number, since 2 + 6 + 656 + 2 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

266562 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2²⁶⁶⁵⁶² is an apocalyptic number.

266562 is an abundant number, since it is smaller than the sum of its proper divisors (323118).

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

266562 is a wasteful number, since it uses less digits than its factorization.

266562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 315 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 266562 is about 516.2964264839. The cubic root of 266562 is about 64.3575366587.

Subtracting from 266562 its reverse (265662), we obtain a square (900 = 30²).

It can be divided in two parts, 266 and 562, that added together give a palindrome (828).

The spelling of 266562 in words is "two hundred sixty-six thousand, five hundred sixty-two".