2006553549 has 64 divisors (see below), whose sum is σ = 3689441280. Its totient is φ = 936126720.

The previous prime is 2006553541. The next prime is 2006553551. The reversal of 2006553549 is 9453556002.

It is not a de Polignac number, because 2006553549 - 2³ = 2006553541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006553541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102082 + ... + 120140.

It is an arithmetic number, because the mean of its divisors is an integer number (57647520).

Almost surely, 2^2006553549 is an apocalyptic number.

It is an amenable number.

2006553549 is a deficient number, since it is larger than the sum of its proper divisors (1682887731).

2006553549 is a wasteful number, since it uses less digits than its factorization.

2006553549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18130.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 2006553549 is about 44794.5705303667. The cubic root of 2006553549 is about 1261.2957085604.

It can be divided in two parts, 2006 and 553549, that added together give a palindrome (555555).

The spelling of 2006553549 in words is "two billion, six million, five hundred fifty-three thousand, five hundred forty-nine".