6509552 has 90 divisors (see below), whose sum is σ = 16157448. Its totient is φ = 2528064.

The previous prime is 6509537. The next prime is 6509557. The reversal of 6509552 is 2559056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6509557) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 283013 + ... + 283035.

Almost surely, 2^6509552 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 6509552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8078724).

6509552 is an abundant number, since it is smaller than the sum of its proper divisors (9647896).

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

6509552 is a wasteful number, since it uses less digits than its factorization.

6509552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 6509552 is about 2551.3823704024. The cubic root of 6509552 is about 186.7169309084.

The spelling of 6509552 in words is "six million, five hundred nine thousand, five hundred fifty-two".