20727056 has 20 divisors (see below), whose sum is σ = 45895872. Its totient is φ = 8882976.

The previous prime is 20727037. The next prime is 20727061. The reversal of 20727056 is 65072702.

It is a happy number.

It is a super-2 number, since 2×20727056² = 859221700854272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92420 + ... + 92643.

Almost surely, 2^20727056 is an apocalyptic number.

It is an amenable number.

20727056 is an abundant number, since it is smaller than the sum of its proper divisors (25168816).

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

20727056 is a wasteful number, since it uses less digits than its factorization.

20727056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185078 (or 185072 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20727056 is about 4552.6976618264. The cubic root of 20727056 is about 274.6919128248.

Adding to 20727056 its reverse (65072702), we get a palindrome (85799758).

The spelling of 20727056 in words is "twenty million, seven hundred twenty-seven thousand, fifty-six".