6534520 has 16 divisors (see below), whose sum is σ = 14702760. Its totient is φ = 2613792.

The previous prime is 6534509. The next prime is 6534523. The reversal of 6534520 is 254356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534523) 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 3 ways as a sum of consecutive naturals, for example, 81642 + ... + 81721.

Almost surely, 2^6534520 is an apocalyptic number.

It is an amenable number.

6534520 is an abundant number, since it is smaller than the sum of its proper divisors (8168240).

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

6534520 is a wasteful number, since it uses less digits than its factorization.

6534520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163374 (or 163370 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 6534520 is about 2556.2707211874. The cubic root of 6534520 is about 186.9553498018.

Adding to 6534520 its reverse (254356), we get a palindrome (6788876).

The spelling of 6534520 in words is "six million, five hundred thirty-four thousand, five hundred twenty".