5512231 has 2 divisors, whose sum is σ = 5512232.
Its totient is φ = 5512230.
The previous prime is 5512229. The next prime is 5512237. The reversal of 5512231 is 1322155.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 5512231 - 21 = 5512229 is a prime.
It is a super-2 number, since 2×55122312 = 60769381194722, which contains 22 as substring.
Together with 5512229, it forms a pair of twin primes.
5512231 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 5512199 and 5512208.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5512237) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756115 + 2756116.
It is an arithmetic number, because the mean of its divisors is an integer number (2756116).
Almost surely, 25512231 is an apocalyptic number.
5512231 is a deficient number, since it is larger than the sum of its proper divisors (1).
5512231 is an equidigital number, since it uses as much as digits as its factorization.
5512231 is an evil number, because the sum of its binary digits is even.
The product of its digits is 300, while the sum is 19.
The square root of 5512231 is about 2347.8140897439.
The cubic root of 5512231 is about 176.6481674392.
Adding to 5512231 its reverse (1322155), we get a palindrome (6834386).
The spelling of 5512231 in words is "five million, five hundred twelve thousand, two hundred thirty-one".