6512020 has 48 divisors (see below), whose sum is σ = 14696640. Its totient is φ = 2415104.

The previous prime is 6511997. The next prime is 6512027. The reversal of 6512020 is 202156.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6511985 and 6512003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36291 + ... + 36469.

It is an arithmetic number, because the mean of its divisors is an integer number (306180).

Almost surely, 2^6512020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6512020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7348320).

6512020 is an abundant number, since it is smaller than the sum of its proper divisors (8184620).

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

6512020 is a wasteful number, since it uses less digits than its factorization.

6512020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 6512020 is about 2551.8659839419. The cubic root of 6512020 is about 186.7405249110.

Adding to 6512020 its reverse (202156), we get a palindrome (6714176).

The spelling of 6512020 in words is "six million, five hundred twelve thousand, twenty".