6655555 has 8 divisors (see below), whose sum is σ = 8028000. Its totient is φ = 5296896.

The previous prime is 6655549. The next prime is 6655577. The reversal of 6655555 is 5555566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6655555 - 2³ = 6655547 is a prime.

6655555 is a modest number, since divided by 5555 gives 665 as remainder.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

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, 2350 + ... + 4339.

It is an arithmetic number, because the mean of its divisors is an integer number (1003500).

Almost surely, 2^6655555 is an apocalyptic number.

6655555 is a deficient number, since it is larger than the sum of its proper divisors (1372445).

6655555 is a wasteful number, since it uses less digits than its factorization.

6655555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893.

The product of its digits is 112500, while the sum is 37.

The square root of 6655555 is about 2579.8362351126. The cubic root of 6655555 is about 188.1025828412.

The spelling of 6655555 in words is "six million, six hundred fifty-five thousand, five hundred fifty-five".