5631163331 has 4 divisors (see below), whose sum is σ = 5631417600. Its totient is φ = 5630909064.

The previous prime is 5631163319. The next prime is 5631163381. The reversal of 5631163331 is 1333611365.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5631163331 is a prime.

It is a super-2 number, since 2×5631163331² = 63420000920798031122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5631163381) 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, 90371 + ... + 139388.

It is an arithmetic number, because the mean of its divisors is an integer number (1407854400).

Almost surely, 2^5631163331 is an apocalyptic number.

5631163331 is a deficient number, since it is larger than the sum of its proper divisors (254269).

5631163331 is a wasteful number, since it uses less digits than its factorization.

5631163331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254268.

The product of its digits is 14580, while the sum is 32.

The square root of 5631163331 is about 75041.0776241919. The cubic root of 5631163331 is about 1779.0959651000.

Adding to 5631163331 its reverse (1333611365), we get a palindrome (6964774696).

The spelling of 5631163331 in words is "five billion, six hundred thirty-one million, one hundred sixty-three thousand, three hundred thirty-one".