5631503 has 4 divisors (see below), whose sum is σ = 5636400. Its totient is φ = 5626608.

The previous prime is 5631499. The next prime is 5631523. The reversal of 5631503 is 3051365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5631503 - 2² = 5631499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631523) 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, 323 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (1409100).

Almost surely, 2^5631503 is an apocalyptic number.

5631503 is a deficient number, since it is larger than the sum of its proper divisors (4897).

5631503 is a wasteful number, since it uses less digits than its factorization.

5631503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 5631503 is about 2373.0788018943. The cubic root of 5631503 is about 177.9131735778.

Adding to 5631503 its reverse (3051365), we get a palindrome (8682868).

The spelling of 5631503 in words is "five million, six hundred thirty-one thousand, five hundred three".