20682056 has 16 divisors (see below), whose sum is σ = 38847600. Its totient is φ = 10322704.

The previous prime is 20682043. The next prime is 20682059. The reversal of 20682056 is 65028602.

It is not an unprimeable number, because it can be changed into a prime (20682059) 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, 3311 + ... + 7233.

It is an arithmetic number, because the mean of its divisors is an integer number (2427975).

Almost surely, 2^20682056 is an apocalyptic number.

It is an amenable number.

20682056 is a deficient number, since it is larger than the sum of its proper divisors (18165544).

20682056 is a wasteful number, since it uses less digits than its factorization.

20682056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4584 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20682056 is about 4547.7528516840. The cubic root of 20682056 is about 274.4929765081.

The spelling of 20682056 in words is "twenty million, six hundred eighty-two thousand, fifty-six".