6564042 has 12 divisors (see below), whose sum is σ = 14222130. Its totient is φ = 2188008.

The previous prime is 6564011. The next prime is 6564043. The reversal of 6564042 is 2404656.

It is a happy number.

6564042 is a `hidden beast` number, since 656 + 4 + 0 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5659641 + 904401 = 2379^2 + 951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6563997 and 6564015.

It is not an unprimeable number, because it can be changed into a prime (6564043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182317 + ... + 182352.

Almost surely, 2^6564042 is an apocalyptic number.

6564042 is an abundant number, since it is smaller than the sum of its proper divisors (7658088).

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

6564042 is a wasteful number, since it uses less digits than its factorization.

6564042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364677 (or 364674 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 6564042 is about 2562.0386413948. The cubic root of 6564042 is about 187.2364724574.

Adding to 6564042 its reverse (2404656), we get a palindrome (8968698).

The spelling of 6564042 in words is "six million, five hundred sixty-four thousand, forty-two".