6545000 has 160 divisors (see below), whose sum is σ = 20243520. Its totient is φ = 1920000.

The previous prime is 6544943. The next prime is 6545003. The reversal of 6545000 is 5456.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (6545003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 384992 + ... + 385008.

It is an arithmetic number, because the mean of its divisors is an integer number (126522).

Almost surely, 2^6545000 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 6545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10121760).

6545000 is an abundant number, since it is smaller than the sum of its proper divisors (13698520).

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

6545000 is a wasteful number, since it uses less digits than its factorization.

6545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 6545000 is about 2558.3197610932. The cubic root of 6545000 is about 187.0552421462.

The spelling of 6545000 in words is "six million, five hundred forty-five thousand".