6455855 has 16 divisors (see below), whose sum is σ = 8924160. Its totient is φ = 4391712.

The previous prime is 6455837. The next prime is 6455857. The reversal of 6455855 is 5585546.

It is a cyclic number.

It is not a de Polignac number, because 6455855 - 2¹² = 6451759 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6455857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4202 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (557760).

Almost surely, 2^6455855 is an apocalyptic number.

6455855 is a deficient number, since it is larger than the sum of its proper divisors (2468305).

6455855 is a wasteful number, since it uses less digits than its factorization.

6455855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its digits is 120000, while the sum is 38.

The square root of 6455855 is about 2540.8374603662. The cubic root of 6455855 is about 186.2021062085.

The spelling of 6455855 in words is "six million, four hundred fifty-five thousand, eight hundred fifty-five".