6520063602 has 48 divisors (see below), whose sum is σ = 14170893408. Its totient is φ = 1998996480.

The previous prime is 6520063577. The next prime is 6520063607. The reversal of 6520063602 is 2063600256.

It is a super-2 number, since 2×6520063602² = 85022458748250428808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6520063602.

It is not an unprimeable number, because it can be changed into a prime (6520063607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275602 + ... + 298322.

It is an arithmetic number, because the mean of its divisors is an integer number (295226946).

Almost surely, 2^6520063602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6520063602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7085446704).

6520063602 is an abundant number, since it is smaller than the sum of its proper divisors (7650829806).

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

6520063602 is a wasteful number, since it uses less digits than its factorization.

6520063602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23035 (or 23022 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6520063602 is about 80746.9107892060. The cubic root of 6520063602 is about 1868.1738014369.

Adding to 6520063602 its reverse (2063600256), we get a palindrome (8583663858).

The spelling of 6520063602 in words is "six billion, five hundred twenty million, sixty-three thousand, six hundred two".