266562225 has 48 divisors (see below), whose sum is σ = 494313600. Its totient is φ = 140823360.

The previous prime is 266562223. The next prime is 266562259. The reversal of 266562225 is 522265662.

266562225 is a `hidden beast` number, since 2 + 6 + 6 + 5 + 622 + 25 = 666.

It is not a de Polignac number, because 266562225 - 2¹ = 266562223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266562225.

It is not an unprimeable number, because it can be changed into a prime (266562223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71764 + ... + 75386.

It is an arithmetic number, because the mean of its divisors is an integer number (10298200).

Almost surely, 2^266562225 is an apocalyptic number.

266562225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266562225 is a deficient number, since it is larger than the sum of its proper divisors (227751375).

266562225 is a wasteful number, since it uses less digits than its factorization.

266562225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751 (or 3740 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 266562225 is about 16326.7334454875. The cubic root of 266562225 is about 643.5755476639.

The spelling of 266562225 in words is "two hundred sixty-six million, five hundred sixty-two thousand, two hundred twenty-five".