266844425 has 12 divisors (see below), whose sum is σ = 331771920. Its totient is φ = 212904720.

The previous prime is 266844421. The next prime is 266844443. The reversal of 266844425 is 524448662.

It is not a de Polignac number, because 266844425 - 2² = 266844421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266844421) 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 11 ways as a sum of consecutive naturals, for example, 4607 + ... + 23556.

It is an arithmetic number, because the mean of its divisors is an integer number (27647660).

Almost surely, 2^266844425 is an apocalyptic number.

266844425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266844425 is a deficient number, since it is larger than the sum of its proper divisors (64927495).

266844425 is a wasteful number, since it uses less digits than its factorization.

266844425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552 (or 28547 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

The square root of 266844425 is about 16335.3734270141. The cubic root of 266844425 is about 643.8025777900.

The spelling of 266844425 in words is "two hundred sixty-six million, eight hundred forty-four thousand, four hundred twenty-five".