553534243 has 2 divisors, whose sum is σ = 553534244. Its totient is φ = 553534242.

The previous prime is 553534211. The next prime is 553534273. The reversal of 553534243 is 342435355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553534243 - 2⁵ = 553534211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 553534199 and 553534208.

It is not a weakly prime, because it can be changed into another prime (553534273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276767121 + 276767122.

It is an arithmetic number, because the mean of its divisors is an integer number (276767122).

Almost surely, 2^553534243 is an apocalyptic number.

553534243 is a deficient number, since it is larger than the sum of its proper divisors (1).

553534243 is an equidigital number, since it uses as much as digits as its factorization.

553534243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 34.

The square root of 553534243 is about 23527.3084520946. The cubic root of 553534243 is about 821.0724827617.

Adding to 553534243 its reverse (342435355), we get a palindrome (895969598).

The spelling of 553534243 in words is "five hundred fifty-three million, five hundred thirty-four thousand, two hundred forty-three".