6533538 has 16 divisors (see below), whose sum is σ = 14255136. Its totient is φ = 1979840.

The previous prime is 6533509. The next prime is 6533561. The reversal of 6533538 is 8353356.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 6533499 and 6533508.

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 in 7 ways as a sum of consecutive naturals, for example, 49431 + ... + 49562.

It is an arithmetic number, because the mean of its divisors is an integer number (890946).

Almost surely, 2^6533538 is an apocalyptic number.

6533538 is an abundant number, since it is smaller than the sum of its proper divisors (7721598).

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

6533538 is a wasteful number, since it uses less digits than its factorization.

6533538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99009.

The product of its digits is 32400, while the sum is 33.

The square root of 6533538 is about 2556.0786372880. The cubic root of 6533538 is about 186.9459841891.

The spelling of 6533538 in words is "six million, five hundred thirty-three thousand, five hundred thirty-eight".