6549542 has 4 divisors (see below), whose sum is σ = 9824316. Its totient is φ = 3274770.

The previous prime is 6549523. The next prime is 6549551. The reversal of 6549542 is 2459456.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1637384 + ... + 1637387.

It is an arithmetic number, because the mean of its divisors is an integer number (2456079).

Almost surely, 2^6549542 is an apocalyptic number.

6549542 is a deficient number, since it is larger than the sum of its proper divisors (3274774).

6549542 is a wasteful number, since it uses less digits than its factorization.

6549542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274773.

The product of its digits is 43200, while the sum is 35.

The square root of 6549542 is about 2559.2072991456. The cubic root of 6549542 is about 187.0985020623.

The spelling of 6549542 in words is "six million, five hundred forty-nine thousand, five hundred forty-two".