6563085028 has 6 divisors (see below), whose sum is σ = 11485398806. Its totient is φ = 3281542512.

The previous prime is 6563085019. The next prime is 6563085041. The reversal of 6563085028 is 8205803656.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4791685284 + 1771399744 = 69222^2 + 42088^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820385625 + ... + 820385632.

Almost surely, 2^6563085028 is an apocalyptic number.

It is an amenable number.

6563085028 is a deficient number, since it is larger than the sum of its proper divisors (4922313778).

6563085028 is a wasteful number, since it uses less digits than its factorization.

6563085028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640771261 (or 1640771259 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 6563085028 is about 81012.8695208360. The cubic root of 6563085028 is about 1872.2737294377.

The spelling of 6563085028 in words is "six billion, five hundred sixty-three million, eighty-five thousand, twenty-eight".