5616531231 has 16 divisors (see below), whose sum is σ = 7514528256. Its totient is φ = 3731466816.

The previous prime is 5616531227. The next prime is 5616531257. The reversal of 5616531231 is 1321356165.

It is not a de Polignac number, because 5616531231 - 2² = 5616531227 is a prime.

It is a super-2 number, since 2×5616531231² = 63090846137596750722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5616531192 and 5616531201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5616531931) 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, 1321596 + ... + 1325838.

It is an arithmetic number, because the mean of its divisors is an integer number (469658016).

Almost surely, 2^5616531231 is an apocalyptic number.

5616531231 is a deficient number, since it is larger than the sum of its proper divisors (1897997025).

5616531231 is a wasteful number, since it uses less digits than its factorization.

5616531231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its digits is 16200, while the sum is 33.

The square root of 5616531231 is about 74943.5202736034. The cubic root of 5616531231 is about 1777.5536852086.

Adding to 5616531231 its reverse (1321356165), we get a palindrome (6937887396).

The spelling of 5616531231 in words is "five billion, six hundred sixteen million, five hundred thirty-one thousand, two hundred thirty-one".