2003545552 has 20 divisors (see below), whose sum is σ = 3894281380. Its totient is φ = 998569728.

The previous prime is 2003545519. The next prime is 2003545553. The reversal of 2003545552 is 2555453002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79495056 + 1924050496 = 8916^2 + 43864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003545553) 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 3 ways as a sum of consecutive naturals, for example, 195027 + ... + 205042.

It is an arithmetic number, because the mean of its divisors is an integer number (194714069).

Almost surely, 2^2003545552 is an apocalyptic number.

It is an amenable number.

2003545552 is a deficient number, since it is larger than the sum of its proper divisors (1890735828).

2003545552 is a wasteful number, since it uses less digits than its factorization.

2003545552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400390 (or 400384 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 2003545552 is about 44760.9824735785. The cubic root of 2003545552 is about 1260.6651296388.

Adding to 2003545552 its reverse (2555453002), we get a palindrome (4558998554).

The spelling of 2003545552 in words is "two billion, three million, five hundred forty-five thousand, five hundred fifty-two".