2003504545 has 16 divisors (see below), whose sum is σ = 2748389760. Its totient is φ = 1373468544.

The previous prime is 2003504537. The next prime is 2003504599. The reversal of 2003504545 is 5454053002.

It is not a de Polignac number, because 2003504545 - 2³ = 2003504537 is a prime.

It is an unprimeable number.

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, 259714 + ... + 267316.

It is an arithmetic number, because the mean of its divisors is an integer number (171774360).

Almost surely, 2^2003504545 is an apocalyptic number.

It is an amenable number.

2003504545 is a deficient number, since it is larger than the sum of its proper divisors (744885215).

2003504545 is an equidigital number, since it uses as much as digits as its factorization.

2003504545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15144.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2003504545 is about 44760.5244048816. The cubic root of 2003504545 is about 1260.6565288115.

Adding to 2003504545 its reverse (5454053002), we get a palindrome (7457557547).

The spelling of 2003504545 in words is "two billion, three million, five hundred four thousand, five hundred forty-five".