6564530 has 24 divisors (see below), whose sum is σ = 13746348. Its totient is φ = 2250528.

The previous prime is 6564521. The next prime is 6564539. The reversal of 6564530 is 354656.

It is an interprime number because it is at equal distance from previous prime (6564521) and next prime (6564539).

It can be written as a sum of positive squares in 2 ways, for example, as 5697769 + 866761 = 2387^2 + 931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6564493 and 6564502.

It is not an unprimeable number, because it can be changed into a prime (6564539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6209 + ... + 7188.

Almost surely, 2^6564530 is an apocalyptic number.

6564530 is an abundant number, since it is smaller than the sum of its proper divisors (7181818).

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

6564530 is a wasteful number, since it uses less digits than its factorization.

6564530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13418 (or 13411 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 6564530 is about 2562.1338762836. The cubic root of 6564530 is about 187.2411123391.

The spelling of 6564530 in words is "six million, five hundred sixty-four thousand, five hundred thirty".