20544652 has 6 divisors (see below), whose sum is σ = 35953148. Its totient is φ = 10272324.

The previous prime is 20544611. The next prime is 20544659. The reversal of 20544652 is 25644502.

It is a super-2 number, since 2×20544652² = 844165451602208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20544652.

It is not an unprimeable number, because it can be changed into a prime (20544659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2568078 + ... + 2568085.

Almost surely, 2^20544652 is an apocalyptic number.

It is an amenable number.

20544652 is a deficient number, since it is larger than the sum of its proper divisors (15408496).

20544652 is a wasteful number, since it uses less digits than its factorization.

20544652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136167 (or 5136165 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20544652 is about 4532.6208753877. The cubic root of 20544652 is about 273.8837484359.

The spelling of 20544652 in words is "twenty million, five hundred forty-four thousand, six hundred fifty-two".