20544050 has 18 divisors (see below), whose sum is σ = 38271639. Its totient is φ = 8204800.

The previous prime is 20544049. The next prime is 20544079. The reversal of 20544050 is 5044502.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 16507969 + 4036081 = 4063^2 + 2009^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3205.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 31730 + ... + 32370.

Almost surely, 2^20544050 is an apocalyptic number.

20544050 is a deficient number, since it is larger than the sum of its proper divisors (17727589).

20544050 is an frugal number, since it uses more digits than its factorization.

20544050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 20544050 is about 4532.5544674058. The cubic root of 20544050 is about 273.8810732932.

Multiplying 20544050 by its product of nonzero digits (800), we get a square (16435240000 = 128200²).

Adding to 20544050 its reverse (5044502), we get a palindrome (25588552).

The spelling of 20544050 in words is "twenty million, five hundred forty-four thousand, fifty".