630315503 has 4 divisors (see below), whose sum is σ = 630492168. Its totient is φ = 630138840.

The previous prime is 630315479. The next prime is 630315523. The reversal of 630315503 is 305513036.

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

It is a cyclic number.

It is not a de Polignac number, because 630315503 - 2⁸ = 630315247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630315523) 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, 82868 + ... + 90153.

It is an arithmetic number, because the mean of its divisors is an integer number (157623042).

Almost surely, 2^630315503 is an apocalyptic number.

630315503 is a deficient number, since it is larger than the sum of its proper divisors (176665).

630315503 is a wasteful number, since it uses less digits than its factorization.

630315503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176664.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 630315503 is about 25106.0849795423. The cubic root of 630315503 is about 857.4049694800.

Adding to 630315503 its reverse (305513036), we get a palindrome (935828539).

The spelling of 630315503 in words is "six hundred thirty million, three hundred fifteen thousand, five hundred three".