663055530 has 32 divisors (see below), whose sum is σ = 1596538944. Its totient is φ = 176236416.

The previous prime is 663055529. The next prime is 663055541. The reversal of 663055530 is 35550366.

663055530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 663055491 and 663055500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26787 + ... + 45206.

It is an arithmetic number, because the mean of its divisors is an integer number (49891842).

Almost surely, 2^663055530 is an apocalyptic number.

663055530 is an abundant number, since it is smaller than the sum of its proper divisors (933483414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663055530 is a wasteful number, since it uses less digits than its factorization.

663055530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72310.

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 663055530 is about 25749.8646598385. The cubic root of 663055530 is about 872.0002989716. Note that the first 3 decimals are identical.

The spelling of 663055530 in words is "six hundred sixty-three million, fifty-five thousand, five hundred thirty".