663285533 has 2 divisors, whose sum is σ = 663285534. Its totient is φ = 663285532.

The previous prime is 663285457. The next prime is 663285547. The reversal of 663285533 is 335582366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662444644 + 840889 = 25738^2 + 917^2 .

It is a cyclic number.

It is not a de Polignac number, because 663285533 - 2²⁰ = 662236957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663285433) 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, 331642766 + 331642767.

It is an arithmetic number, because the mean of its divisors is an integer number (331642767).

Almost surely, 2^663285533 is an apocalyptic number.

It is an amenable number.

663285533 is a deficient number, since it is larger than the sum of its proper divisors (1).

663285533 is an equidigital number, since it uses as much as digits as its factorization.

663285533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 41.

The square root of 663285533 is about 25754.3303737449. The cubic root of 663285533 is about 872.1011148106.

The spelling of 663285533 in words is "six hundred sixty-three million, two hundred eighty-five thousand, five hundred thirty-three".