663253333 has 2 divisors, whose sum is σ = 663253334. Its totient is φ = 663253332.

The previous prime is 663253321. The next prime is 663253361. The reversal of 663253333 is 333352366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 530012484 + 133240849 = 23022^2 + 11543^2 .

It is a cyclic number.

It is not a de Polignac number, because 663253333 - 2¹⁷ = 663122261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663253313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331626666 + 331626667.

It is an arithmetic number, because the mean of its divisors is an integer number (331626667).

Almost surely, 2^663253333 is an apocalyptic number.

It is an amenable number.

663253333 is a deficient number, since it is larger than the sum of its proper divisors (1).

663253333 is an equidigital number, since it uses as much as digits as its factorization.

663253333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 34.

The square root of 663253333 is about 25753.7052285686. The cubic root of 663253333 is about 872.0870021804.

The spelling of 663253333 in words is "six hundred sixty-three million, two hundred fifty-three thousand, three hundred thirty-three".