5611231 has 2 divisors, whose sum is σ = 5611232. Its totient is φ = 5611230.

The previous prime is 5611223. The next prime is 5611253. The reversal of 5611231 is 1321165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5611231 - 2³ = 5611223 is a prime.

It is a super-2 number, since 2×5611231² = 62971826670722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5611199 and 5611208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5611271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805615 + 2805616.

It is an arithmetic number, because the mean of its divisors is an integer number (2805616).

Almost surely, 2^5611231 is an apocalyptic number.

5611231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611231 is an equidigital number, since it uses as much as digits as its factorization.

5611231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 5611231 is about 2368.8037065152. The cubic root of 5611231 is about 177.6994359536.

Adding to 5611231 its reverse (1321165), we get a palindrome (6932396).

The spelling of 5611231 in words is "five million, six hundred eleven thousand, two hundred thirty-one".