6511056 has 20 divisors (see below), whose sum is σ = 16820352. Its totient is φ = 2170336.

The previous prime is 6511049. The next prime is 6511073. The reversal of 6511056 is 6501156.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 in 3 ways as a sum of consecutive naturals, for example, 67776 + ... + 67871.

Almost surely, 2^6511056 is an apocalyptic number.

It is an amenable number.

6511056 is an abundant number, since it is smaller than the sum of its proper divisors (10309296).

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

6511056 is a wasteful number, since it uses less digits than its factorization.

6511056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135658 (or 135652 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 6511056 is about 2551.6770955589. The cubic root of 6511056 is about 186.7313098109.

Subtracting from 6511056 its product of nonzero digits (900), we obtain a palindrome (6510156).

The spelling of 6511056 in words is "six million, five hundred eleven thousand, fifty-six".