6515542 has 16 divisors (see below), whose sum is σ = 10810512. Its totient is φ = 2920320.

The previous prime is 6515527. The next prime is 6515543. The reversal of 6515542 is 2455156.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 6515542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6515543) 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, 423 + ... + 3634.

It is an arithmetic number, because the mean of its divisors is an integer number (675657).

Almost surely, 2^6515542 is an apocalyptic number.

6515542 is a deficient number, since it is larger than the sum of its proper divisors (4294970).

6515542 is a wasteful number, since it uses less digits than its factorization.

6515542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its digits is 6000, while the sum is 28.

The square root of 6515542 is about 2552.5559739210. Note that the first 3 decimals coincide. The cubic root of 6515542 is about 186.7741847991.

The spelling of 6515542 in words is "six million, five hundred fifteen thousand, five hundred forty-two".