20043552503530 has 16 divisors (see below), whose sum is σ = 36126054222120. Its totient is φ = 8006829953472.

The previous prime is 20043552503369. The next prime is 20043552503537. The reversal of 20043552503530 is 3530525534002.

It can be written as a sum of positive squares in 4 ways, for example, as 19214555000481 + 828997503049 = 4383441^2 + 910493^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20043552503530.

It is not an unprimeable number, because it can be changed into a prime (20043552503537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323873045 + ... + 1323888184.

Almost surely, 2^{20043552503530} is an apocalyptic number.

20043552503530 is a deficient number, since it is larger than the sum of its proper divisors (16082501718590).

20043552503530 is a wasteful number, since it uses less digits than its factorization.

20043552503530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647761993.

The product of its (nonzero) digits is 270000, while the sum is 37.

The spelling of 20043552503530 in words is "twenty trillion, forty-three billion, five hundred fifty-two million, five hundred three thousand, five hundred thirty".