63003 has 4 divisors (see below), whose sum is σ = 84008. Its totient is φ = 42000.

The previous prime is 62989. The next prime is 63029. The reversal of 63003 is 30036.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63003 - 2⁴ = 62987 is a prime.

It is a D-number.

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 63003.

It is not an unprimeable number, because it can be changed into a prime (63073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10498 + ... + 10503.

It is an arithmetic number, because the mean of its divisors is an integer number (21002).

2⁶³⁰⁰³ is an apocalyptic number.

63003 is a deficient number, since it is larger than the sum of its proper divisors (21005).

63003 is a wasteful number, since it uses less digits than its factorization.

63003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21004.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 63003 is about 251.0039840321. The cubic root of 63003 is about 39.7912036653.

Adding to 63003 its reverse (30036), we get a palindrome (93039).

The spelling of 63003 in words is "sixty-three thousand, three".