56400266 has 16 divisors (see below), whose sum is σ = 91496328. Its totient is φ = 25920000.

The previous prime is 56400259. The next prime is 56400269. The reversal of 56400266 is 66200465.

56400266 is digitally balanced in base 2, 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 4 ways, for example, as 36784225 + 19616041 = 6065^2 + 4429^2 .

It is not an unprimeable number, because it can be changed into a prime (56400269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 10766.

Almost surely, 2^56400266 is an apocalyptic number.

56400266 is a deficient number, since it is larger than the sum of its proper divisors (35096062).

56400266 is a wasteful number, since it uses less digits than its factorization.

56400266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 56400266 is about 7510.0110519226. The cubic root of 56400266 is about 383.4955987680.

The spelling of 56400266 in words is "fifty-six million, four hundred thousand, two hundred sixty-six".