6545630 has 32 divisors (see below), whose sum is σ = 14503104. Its totient is φ = 2071296.

The previous prime is 6545621. The next prime is 6545641. The reversal of 6545630 is 365456.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6545593 and 6545602.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2687 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (453222).

Almost surely, 2^6545630 is an apocalyptic number.

6545630 is an abundant number, since it is smaller than the sum of its proper divisors (7957474).

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

6545630 is a wasteful number, since it uses less digits than its factorization.

6545630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220.

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

The square root of 6545630 is about 2558.4428858194. The cubic root of 6545630 is about 187.0612437261.

The spelling of 6545630 in words is "six million, five hundred forty-five thousand, six hundred thirty".