20936056 has 16 divisors (see below), whose sum is σ = 40091040. Its totient is φ = 10245120.

The previous prime is 20936039. The next prime is 20936059. The reversal of 20936056 is 65063902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20936059) 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, 27465 + ... + 28216.

It is an arithmetic number, because the mean of its divisors is an integer number (2505690).

Almost surely, 2^20936056 is an apocalyptic number.

It is an amenable number.

20936056 is a deficient number, since it is larger than the sum of its proper divisors (19154984).

20936056 is a wasteful number, since it uses less digits than its factorization.

20936056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55734 (or 55730 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 20936056 is about 4575.5935134144. The cubic root of 20936056 is about 275.6121065093.

Adding to 20936056 its reverse (65063902), we get a palindrome (85999958).

The spelling of 20936056 in words is "twenty million, nine hundred thirty-six thousand, fifty-six".