553444663 has 2 divisors, whose sum is σ = 553444664. Its totient is φ = 553444662.

The previous prime is 553444657. The next prime is 553444753. The reversal of 553444663 is 366444355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553444663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557444663) 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, 276722331 + 276722332.

It is an arithmetic number, because the mean of its divisors is an integer number (276722332).

Almost surely, 2^553444663 is an apocalyptic number.

553444663 is a deficient number, since it is larger than the sum of its proper divisors (1).

553444663 is an equidigital number, since it uses as much as digits as its factorization.

553444663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 40.

The square root of 553444663 is about 23525.4046298889. The cubic root of 553444663 is about 821.0281882175.

The spelling of 553444663 in words is "five hundred fifty-three million, four hundred forty-four thousand, six hundred sixty-three".