556111343 has 2 divisors, whose sum is σ = 556111344. Its totient is φ = 556111342.

The previous prime is 556111321. The next prime is 556111349. The reversal of 556111343 is 343111655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556111343 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556111349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278055671 + 278055672.

It is an arithmetic number, because the mean of its divisors is an integer number (278055672).

Almost surely, 2^556111343 is an apocalyptic number.

556111343 is a deficient number, since it is larger than the sum of its proper divisors (1).

556111343 is an equidigital number, since it uses as much as digits as its factorization.

556111343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 556111343 is about 23582.0131244133. The cubic root of 556111343 is about 822.3447380181.

Adding to 556111343 its reverse (343111655), we get a palindrome (899222998).

The spelling of 556111343 in words is "five hundred fifty-six million, one hundred eleven thousand, three hundred forty-three".