6564450 has 48 divisors (see below), whose sum is σ = 16472160. Its totient is φ = 1729920.

The previous prime is 6564449. The next prime is 6564457. The reversal of 6564450 is 544656.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6564457) 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, 15846 + ... + 16254.

It is an arithmetic number, because the mean of its divisors is an integer number (343170).

Almost surely, 2^6564450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6564450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8236080).

6564450 is an abundant number, since it is smaller than the sum of its proper divisors (9907710).

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

6564450 is a wasteful number, since it uses less digits than its factorization.

6564450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 6564450 is about 2562.1182642493. The cubic root of 6564450 is about 187.2403517185.

The spelling of 6564450 in words is "six million, five hundred sixty-four thousand, four hundred fifty".