266550530 has 8 divisors (see below), whose sum is σ = 479790972. Its totient is φ = 106620208.

The previous prime is 266550523. The next prime is 266550539. The reversal of 266550530 is 35055662.

266550530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 252269689 + 14280841 = 15883^2 + 3779^2 .

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

It is not an unprimeable number, because it can be changed into a prime (266550539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13327517 + ... + 13327536.

Almost surely, 2^266550530 is an apocalyptic number.

266550530 is a deficient number, since it is larger than the sum of its proper divisors (213240442).

266550530 is a wasteful number, since it uses less digits than its factorization.

266550530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26655060.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 266550530 is about 16326.3752866336. The cubic root of 266550530 is about 643.5661355699.

It can be divided in two parts, 26 and 6550530, that added together give a palindrome (6550556).

The spelling of 266550530 in words is "two hundred sixty-six million, five hundred fifty thousand, five hundred thirty".