6662555 has 16 divisors (see below), whose sum is σ = 8558784. Its totient is φ = 4961280.

The previous prime is 6662543. The next prime is 6662561. The reversal of 6662555 is 5552666.

It is not a de Polignac number, because 6662555 - 2¹⁸ = 6400411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8375 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (534924).

Almost surely, 2^6662555 is an apocalyptic number.

6662555 is a deficient number, since it is larger than the sum of its proper divisors (1896229).

6662555 is a wasteful number, since it uses less digits than its factorization.

6662555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its digits is 54000, while the sum is 35.

The square root of 6662555 is about 2581.1925538402. The cubic root of 6662555 is about 188.1685055543.

The spelling of 6662555 in words is "six million, six hundred sixty-two thousand, five hundred fifty-five".