266625 has 32 divisors (see below), whose sum is σ = 499200. Its totient is φ = 140400.

The previous prime is 266603. The next prime is 266633. The reversal of 266625 is 526662.

It is not a de Polignac number, because 266625 - 2⁸ = 266369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable 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 31 ways as a sum of consecutive naturals, for example, 3336 + ... + 3414.

It is an arithmetic number, because the mean of its divisors is an integer number (15600).

2²⁶⁶⁶²⁵ is an apocalyptic number.

266625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266625 is a deficient number, since it is larger than the sum of its proper divisors (232575).

266625 is an equidigital number, since it uses as much as digits as its factorization.

266625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 87 counting only the distinct ones).

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

The square root of 266625 is about 516.3574343418. The cubic root of 266625 is about 64.3626064054.

The spelling of 266625 in words is "two hundred sixty-six thousand, six hundred twenty-five".