2004551553 has 16 divisors (see below), whose sum is σ = 2746950080. Its totient is φ = 1299312576.

The previous prime is 2004551537. The next prime is 2004551567. The reversal of 2004551553 is 3551554002.

It is a happy number.

It is not a de Polignac number, because 2004551553 - 2⁴ = 2004551537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2004551553.

It is not an unprimeable number, because it can be changed into a prime (2004551503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169551 + ... + 180987.

It is an arithmetic number, because the mean of its divisors is an integer number (171684380).

Almost surely, 2^2004551553 is an apocalyptic number.

It is an amenable number.

2004551553 is a deficient number, since it is larger than the sum of its proper divisors (742398527).

2004551553 is a wasteful number, since it uses less digits than its factorization.

2004551553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2004551553 is about 44772.2185400724. The cubic root of 2004551553 is about 1260.8760920124.

The spelling of 2004551553 in words is "two billion, four million, five hundred fifty-one thousand, five hundred fifty-three".