553111343 has 2 divisors, whose sum is σ = 553111344. Its totient is φ = 553111342.

The previous prime is 553111327. The next prime is 553111373. The reversal of 553111343 is 343111355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553111343 - 2⁴ = 553111327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553111373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276555671 + 276555672.

It is an arithmetic number, because the mean of its divisors is an integer number (276555672).

Almost surely, 2^553111343 is an apocalyptic number.

553111343 is a deficient number, since it is larger than the sum of its proper divisors (1).

553111343 is an equidigital number, since it uses as much as digits as its factorization.

553111343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 553111343 is about 23518.3193064470. The cubic root of 553111343 is about 820.8633297761.

Adding to 553111343 its reverse (343111355), we get a palindrome (896222698).

The spelling of 553111343 in words is "five hundred fifty-three million, one hundred eleven thousand, three hundred forty-three".