6556864 has 14 divisors (see below), whose sum is σ = 13011404. Its totient is φ = 3278400.

The previous prime is 6556861. The next prime is 6556937. The reversal of 6556864 is 4686556.

It is not an unprimeable number, because it can be changed into a prime (6556861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51162 + ... + 51289.

It is an arithmetic number, because the mean of its divisors is an integer number (929386).

Almost surely, 2^6556864 is an apocalyptic number.

6556864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6556864 is a deficient number, since it is larger than the sum of its proper divisors (6454540).

6556864 is a wasteful number, since it uses less digits than its factorization.

6556864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102463 (or 102453 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 6556864 is about 2560.6374206435. The cubic root of 6556864 is about 187.1681977778.

The spelling of 6556864 in words is "six million, five hundred fifty-six thousand, eight hundred sixty-four".