663552003 has 16 divisors (see below), whose sum is σ = 890412800. Its totient is φ = 439538400.

The previous prime is 663551983. The next prime is 663552011. The reversal of 663552003 is 300255366.

It is not a de Polignac number, because 663552003 - 2⁹ = 663551491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663552023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630828 + ... + 631878.

It is an arithmetic number, because the mean of its divisors is an integer number (55650800).

Almost surely, 2^663552003 is an apocalyptic number.

663552003 is a deficient number, since it is larger than the sum of its proper divisors (226860797).

663552003 is a wasteful number, since it uses less digits than its factorization.

663552003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 663552003 is about 25759.5031590285. The cubic root of 663552003 is about 872.2178858739.

The spelling of 663552003 in words is "six hundred sixty-three million, five hundred fifty-two thousand, three".