6426555 has 16 divisors (see below), whose sum is σ = 10425120. Its totient is φ = 3379968.

The previous prime is 6426523. The next prime is 6426557. The reversal of 6426555 is 5556246.

It is a happy number.

It is not a de Polignac number, because 6426555 - 2⁵ = 6426523 is a prime.

It is a d-powerful number, because it can be written as 6² + 4⁹ + 2²² + 6⁴ + 5² + 5⁶ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (6426557) by changing a digit.

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, 1840 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (651570).

Almost surely, 2^6426555 is an apocalyptic number.

6426555 is a deficient number, since it is larger than the sum of its proper divisors (3998565).

6426555 is a wasteful number, since it uses less digits than its factorization.

6426555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950.

The product of its digits is 36000, while the sum is 33.

The square root of 6426555 is about 2535.0650879218. The cubic root of 6426555 is about 185.9199852391.

The spelling of 6426555 in words is "six million, four hundred twenty-six thousand, five hundred fifty-five".