6520016 has 10 divisors (see below), whose sum is σ = 12632562. Its totient is φ = 3260000.

The previous prime is 6519991. The next prime is 6520057. The reversal of 6520016 is 6100256.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 250000 = 2504^2 + 500^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6520016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203735 + ... + 203766.

Almost surely, 2^6520016 is an apocalyptic number.

It is an amenable number.

6520016 is a deficient number, since it is larger than the sum of its proper divisors (6112546).

6520016 is a wasteful number, since it uses less digits than its factorization.

6520016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407509 (or 407503 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 6520016 is about 2553.4322000006. The cubic root of 6520016 is about 186.8169255008.

The spelling of 6520016 in words is "six million, five hundred twenty thousand, sixteen".