6550538528 has 12 divisors (see below), whose sum is σ = 12896372790. Its totient is φ = 3275269248.

The previous prime is 6550538507. The next prime is 6550538563. The reversal of 6550538528 is 8258350556.

It can be written as a sum of positive squares in only one way, i.e., 6498294544 + 52243984 = 80612^2 + 7228^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102352133 + ... + 102352196.

Almost surely, 2^6550538528 is an apocalyptic number.

It is an amenable number.

6550538528 is a deficient number, since it is larger than the sum of its proper divisors (6345834262).

6550538528 is a wasteful number, since it uses less digits than its factorization.

6550538528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204704339 (or 204704331 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 47.

The square root of 6550538528 is about 80935.3972499054. The cubic root of 6550538528 is about 1871.0799073807.

The spelling of 6550538528 in words is "six billion, five hundred fifty million, five hundred thirty-eight thousand, five hundred twenty-eight".