6545604 has 24 divisors (see below), whose sum is σ = 16448320. Its totient is φ = 2013984.

The previous prime is 6545603. The next prime is 6545621. The reversal of 6545604 is 4065456.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6545603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20824 + ... + 21135.

Almost surely, 2^6545604 is an apocalyptic number.

It is an amenable number.

6545604 is an abundant number, since it is smaller than the sum of its proper divisors (9902716).

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

6545604 is a wasteful number, since it uses less digits than its factorization.

6545604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41979 (or 41977 counting only the distinct ones).

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

The square root of 6545604 is about 2558.4378045987. The cubic root of 6545604 is about 187.0609960495.

The spelling of 6545604 in words is "six million, five hundred forty-five thousand, six hundred four".