20536056 has 48 divisors (see below), whose sum is σ = 58041360. Its totient is φ = 6547200.

The previous prime is 20536013. The next prime is 20536057. The reversal of 20536056 is 65063502.

20536056 is a `hidden beast` number, since 2 + 0 + 53 + 605 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20536057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4545 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (1209195).

Almost surely, 2^20536056 is an apocalyptic number.

It is an amenable number.

20536056 is an abundant number, since it is smaller than the sum of its proper divisors (37505304).

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

20536056 is a wasteful number, since it uses less digits than its factorization.

20536056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12436 (or 12429 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 20536056 is about 4531.6725389198. The cubic root of 20536056 is about 273.8455449311.

Adding to 20536056 its reverse (65063502), we get a palindrome (85599558).

The spelling of 20536056 in words is "twenty million, five hundred thirty-six thousand, fifty-six".