20653056 has 132 divisors (see below), whose sum is σ = 62589072. Its totient is φ = 6801408.

The previous prime is 20653007. The next prime is 20653063. The reversal of 20653056 is 65035602.

20653056 is a `hidden beast` number, since 2 + 0 + 653 + 0 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248791 + ... + 248873.

Almost surely, 2^20653056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20653056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31294536).

20653056 is an abundant number, since it is smaller than the sum of its proper divisors (41936016).

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

20653056 is an frugal number, since it uses more digits than its factorization.

20653056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 88 counting only the distinct ones).

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

The square root of 20653056 is about 4544.5633453611. The cubic root of 20653056 is about 274.3646201555.

Adding to 20653056 its reverse (65035602), we get a palindrome (85688658).

The spelling of 20653056 in words is "twenty million, six hundred fifty-three thousand, fifty-six".