555344663 has 2 divisors, whose sum is σ = 555344664. Its totient is φ = 555344662.

The previous prime is 555344611. The next prime is 555344687. The reversal of 555344663 is 366443555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555344663 - 2¹⁰ = 555343639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 555344663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555340663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277672331 + 277672332.

It is an arithmetic number, because the mean of its divisors is an integer number (277672332).

Almost surely, 2^555344663 is an apocalyptic number.

555344663 is a deficient number, since it is larger than the sum of its proper divisors (1).

555344663 is an equidigital number, since it uses as much as digits as its factorization.

555344663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 41.

The square root of 555344663 is about 23565.7519082248. The cubic root of 555344663 is about 821.9666571250.

The spelling of 555344663 in words is "five hundred fifty-five million, three hundred forty-four thousand, six hundred sixty-three".