266225385 has 8 divisors (see below), whose sum is σ = 425960640. Its totient is φ = 141986864.

The previous prime is 266225381. The next prime is 266225417. The reversal of 266225385 is 583522662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266225385 - 2² = 266225381 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (266225381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8874165 + ... + 8874194.

It is an arithmetic number, because the mean of its divisors is an integer number (53245080).

Almost surely, 2^266225385 is an apocalyptic number.

It is an amenable number.

266225385 is a deficient number, since it is larger than the sum of its proper divisors (159735255).

266225385 is a wasteful number, since it uses less digits than its factorization.

266225385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17748367.

The product of its digits is 172800, while the sum is 39.

The square root of 266225385 is about 16316.4145877702. The cubic root of 266225385 is about 643.3043497432.

The spelling of 266225385 in words is "two hundred sixty-six million, two hundred twenty-five thousand, three hundred eighty-five".