6855259 has 4 divisors (see below), whose sum is σ = 6872040. Its totient is φ = 6838480.

The previous prime is 6855253. The next prime is 6855283. The reversal of 6855259 is 9525586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6855259 - 2⁵ = 6855227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6855253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7762 + ... + 8599.

It is an arithmetic number, because the mean of its divisors is an integer number (1718010).

Almost surely, 2^6855259 is an apocalyptic number.

6855259 is a deficient number, since it is larger than the sum of its proper divisors (16781).

6855259 is a wasteful number, since it uses less digits than its factorization.

6855259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16780.

The product of its digits is 108000, while the sum is 40.

The square root of 6855259 is about 2618.2549532083. The cubic root of 6855259 is about 189.9654507817.

The spelling of 6855259 in words is "six million, eight hundred fifty-five thousand, two hundred fifty-nine".