266339625 has 64 divisors (see below), whose sum is σ = 482976000. Its totient is φ = 129830400.

The previous prime is 266339621. The next prime is 266339639. The reversal of 266339625 is 526933662.

It is not a de Polignac number, because 266339625 - 2² = 266339621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266339621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205981 + ... + 207269.

It is an arithmetic number, because the mean of its divisors is an integer number (7546500).

Almost surely, 2^266339625 is an apocalyptic number.

266339625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266339625 is a deficient number, since it is larger than the sum of its proper divisors (216636375).

266339625 is a wasteful number, since it uses less digits than its factorization.

266339625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1345 counting only the distinct ones).

The product of its digits is 349920, while the sum is 42.

The square root of 266339625 is about 16319.9149813962. The cubic root of 266339625 is about 643.3963527147.

The spelling of 266339625 in words is "two hundred sixty-six million, three hundred thirty-nine thousand, six hundred twenty-five".