663498055 has 12 divisors (see below), whose sum is σ = 875160216. Its totient is φ = 482543600.

The previous prime is 663498029. The next prime is 663498071. The reversal of 663498055 is 550894366.

663498055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663498055 - 2¹⁵ = 663465287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663497996 and 663498014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547741 + ... + 548950.

It is an arithmetic number, because the mean of its divisors is an integer number (72930018).

Almost surely, 2^663498055 is an apocalyptic number.

663498055 is a deficient number, since it is larger than the sum of its proper divisors (211662161).

663498055 is a wasteful number, since it uses less digits than its factorization.

663498055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096718 (or 1096707 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 663498055 is about 25758.4559902180. The cubic root of 663498055 is about 872.1942475931.

The spelling of 663498055 in words is "six hundred sixty-three million, four hundred ninety-eight thousand, fifty-five".