553212643 has 2 divisors, whose sum is σ = 553212644. Its totient is φ = 553212642.

The previous prime is 553212619. The next prime is 553212659. The reversal of 553212643 is 346212355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553212643 - 2⁹ = 553212131 is a prime.

It is not a weakly prime, because it can be changed into another prime (553212743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276606321 + 276606322.

It is an arithmetic number, because the mean of its divisors is an integer number (276606322).

Almost surely, 2^553212643 is an apocalyptic number.

553212643 is a deficient number, since it is larger than the sum of its proper divisors (1).

553212643 is an equidigital number, since it uses as much as digits as its factorization.

553212643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 553212643 is about 23520.4728481381. The cubic root of 553212643 is about 820.9134392646.

Adding to 553212643 its reverse (346212355), we get a palindrome (899424998).

The spelling of 553212643 in words is "five hundred fifty-three million, two hundred twelve thousand, six hundred forty-three".