663255653 has 2 divisors, whose sum is σ = 663255654. Its totient is φ = 663255652.

The previous prime is 663255643. The next prime is 663255683. The reversal of 663255653 is 356552366.

663255653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521574244 + 141681409 = 22838^2 + 11903^2 .

It is a cyclic number.

It is not a de Polignac number, because 663255653 - 2¹⁰ = 663254629 is a prime.

It is a super-2 number, since 2×663255653² = 879816122472912818, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 663255653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663255643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331627826 + 331627827.

It is an arithmetic number, because the mean of its divisors is an integer number (331627827).

Almost surely, 2^663255653 is an apocalyptic number.

It is an amenable number.

663255653 is a deficient number, since it is larger than the sum of its proper divisors (1).

663255653 is an equidigital number, since it uses as much as digits as its factorization.

663255653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 41.

The square root of 663255653 is about 25753.7502705917. The cubic root of 663255653 is about 872.0880190063.

The spelling of 663255653 in words is "six hundred sixty-three million, two hundred fifty-five thousand, six hundred fifty-three".