20266056 has 48 divisors (see below), whose sum is σ = 55103100. Its totient is φ = 6728832.

The previous prime is 20266039. The next prime is 20266063. The reversal of 20266056 is 65066202.

It can be written as a sum of positive squares in 2 ways, for example, as 19980900 + 285156 = 4470^2 + 534^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28230 + ... + 28938.

Almost surely, 2^20266056 is an apocalyptic number.

It is an amenable number.

20266056 is an abundant number, since it is smaller than the sum of its proper divisors (34837044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20266056 is a wasteful number, since it uses less digits than its factorization.

20266056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20266056 is about 4501.7836465117. The cubic root of 20266056 is about 272.6401086300.

The spelling of 20266056 in words is "twenty million, two hundred sixty-six thousand, fifty-six".