266825 has 12 divisors (see below), whose sum is σ = 356748. Its totient is φ = 196800.

The previous prime is 266821. The next prime is 266837. The reversal of 266825 is 528662.

266825 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 6 ways, for example, as 51529 + 215296 = 227^2 + 464^2 .

It is not a de Polignac number, because 266825 - 2² = 266821 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6³ + 8⁴ + 6³ + 2¹⁸ + 5² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (29729).

2²⁶⁶⁸²⁵ is an apocalyptic number.

266825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266825 is a deficient number, since it is larger than the sum of its proper divisors (89923).

266825 is a wasteful number, since it uses less digits than its factorization.

266825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 839 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 266825 is about 516.5510623356. The cubic root of 266825 is about 64.3786955493.

The spelling of 266825 in words is "two hundred sixty-six thousand, eight hundred twenty-five".