6409555 has 24 divisors (see below), whose sum is σ = 8394192. Its totient is φ = 4694976.

The previous prime is 6409549. The next prime is 6409577. The reversal of 6409555 is 5559046.

It is a happy number.

6409555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6409555 - 2⁵ = 6409523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6409555.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95632 + ... + 95698.

It is an arithmetic number, because the mean of its divisors is an integer number (349758).

Almost surely, 2^6409555 is an apocalyptic number.

6409555 is a deficient number, since it is larger than the sum of its proper divisors (1984637).

6409555 is a wasteful number, since it uses less digits than its factorization.

6409555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 6409555 is about 2531.7098964929. The cubic root of 6409555 is about 185.7559040286.

The spelling of 6409555 in words is "six million, four hundred nine thousand, five hundred fifty-five".