553666363 has 2 divisors, whose sum is σ = 553666364. Its totient is φ = 553666362.

The previous prime is 553666339. The next prime is 553666367. The reversal of 553666363 is 363666355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553666363 - 2⁵ = 553666331 is a prime.

It is not a weakly prime, because it can be changed into another prime (553666367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276833181 + 276833182.

It is an arithmetic number, because the mean of its divisors is an integer number (276833182).

Almost surely, 2^553666363 is an apocalyptic number.

553666363 is a deficient number, since it is larger than the sum of its proper divisors (1).

553666363 is an equidigital number, since it uses as much as digits as its factorization.

553666363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 43.

The square root of 553666363 is about 23530.1160855615. The cubic root of 553666363 is about 821.1378033016.

The spelling of 553666363 in words is "five hundred fifty-three million, six hundred sixty-six thousand, three hundred sixty-three".