20544073 has 8 divisors (see below), whose sum is σ = 23591520. Its totient is φ = 17693280.

The previous prime is 20544049. The next prime is 20544079. The reversal of 20544073 is 37044502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20544073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20544079) 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 in 7 ways as a sum of consecutive naturals, for example, 48940 + ... + 49357.

It is an arithmetic number, because the mean of its divisors is an integer number (2948940).

Almost surely, 2^20544073 is an apocalyptic number.

It is an amenable number.

20544073 is a deficient number, since it is larger than the sum of its proper divisors (3047447).

20544073 is a wasteful number, since it uses less digits than its factorization.

20544073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98327.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20544073 is about 4532.5570046057. The cubic root of 20544073 is about 273.8811755006.

Adding to 20544073 its reverse (37044502), we get a palindrome (57588575).

The spelling of 20544073 in words is "twenty million, five hundred forty-four thousand, seventy-three".