553213543 has 2 divisors, whose sum is σ = 553213544. Its totient is φ = 553213542.

The previous prime is 553213517. The next prime is 553213567. The reversal of 553213543 is 345312355.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553213543 is a prime.

It is a super-2 number, since 2×553213543² = 612090448317225698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553213513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276606771 + 276606772.

It is an arithmetic number, because the mean of its divisors is an integer number (276606772).

Almost surely, 2^553213543 is an apocalyptic number.

553213543 is a deficient number, since it is larger than the sum of its proper divisors (1).

553213543 is an equidigital number, since it uses as much as digits as its factorization.

553213543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 31.

The square root of 553213543 is about 23520.4919803987. The cubic root of 553213543 is about 820.9138844350.

Adding to 553213543 its reverse (345312355), we get a palindrome (898525898).

The spelling of 553213543 in words is "five hundred fifty-three million, two hundred thirteen thousand, five hundred forty-three".