6542565 has 8 divisors (see below), whose sum is σ = 10468128. Its totient is φ = 3489360.

The previous prime is 6542561. The next prime is 6542609. The reversal of 6542565 is 5652456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6542565 - 2² = 6542561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542561) 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 7 ways as a sum of consecutive naturals, for example, 218071 + ... + 218100.

It is an arithmetic number, because the mean of its divisors is an integer number (1308516).

Almost surely, 2^6542565 is an apocalyptic number.

It is an amenable number.

6542565 is a deficient number, since it is larger than the sum of its proper divisors (3925563).

6542565 is a wasteful number, since it uses less digits than its factorization.

6542565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436179.

The product of its digits is 36000, while the sum is 33.

The square root of 6542565 is about 2557.8438185315. The cubic root of 6542565 is about 187.0320419419.

The spelling of 6542565 in words is "six million, five hundred forty-two thousand, five hundred sixty-five".