556412231 has 2 divisors, whose sum is σ = 556412232. Its totient is φ = 556412230.

The previous prime is 556412221. The next prime is 556412267. The reversal of 556412231 is 132214655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556412231 - 2⁶ = 556412167 is a prime.

It is a super-2 number, since 2×556412231² = 619189141612794722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556412194 and 556412203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556412221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278206115 + 278206116.

It is an arithmetic number, because the mean of its divisors is an integer number (278206116).

Almost surely, 2^556412231 is an apocalyptic number.

556412231 is a deficient number, since it is larger than the sum of its proper divisors (1).

556412231 is an equidigital number, since it uses as much as digits as its factorization.

556412231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 556412231 is about 23588.3918697312. The cubic root of 556412231 is about 822.4930231021.

Adding to 556412231 its reverse (132214655), we get a palindrome (688626886).

The spelling of 556412231 in words is "five hundred fifty-six million, four hundred twelve thousand, two hundred thirty-one".