266755 has 8 divisors (see below), whose sum is σ = 330624. Its totient is φ = 206400.

The previous prime is 266719. The next prime is 266759. The reversal of 266755 is 557662.

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

It is not a de Polignac number, because 266755 - 2¹³ = 258563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266759) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 706 + ... + 1015.

It is an arithmetic number, because the mean of its divisors is an integer number (41328).

2²⁶⁶⁷⁵⁵ is an apocalyptic number.

266755 is a deficient number, since it is larger than the sum of its proper divisors (63869).

266755 is a wasteful number, since it uses less digits than its factorization.

266755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its digits is 12600, while the sum is 31.

The square root of 266755 is about 516.4833007949. The cubic root of 266755 is about 64.3730652638.

The spelling of 266755 in words is "two hundred sixty-six thousand, seven hundred fifty-five".