266250004 has 12 divisors (see below), whose sum is σ = 466070164. Its totient is φ = 133087104.

The previous prime is 266249993. The next prime is 266250043. The reversal of 266250004 is 400052662.

It can be written as a sum of positive squares in 2 ways, for example, as 11209104 + 255040900 = 3348^2 + 15970^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11482 + ... + 25774.

Almost surely, 2^266250004 is an apocalyptic number.

It is an amenable number.

266250004 is a deficient number, since it is larger than the sum of its proper divisors (199820160).

266250004 is a wasteful number, since it uses less digits than its factorization.

266250004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18954 (or 18952 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 266250004 is about 16317.1689946510. The cubic root of 266250004 is about 643.3241788335.

The spelling of 266250004 in words is "two hundred sixty-six million, two hundred fifty thousand, four".