6381255 has 8 divisors (see below), whose sum is σ = 10210032. Its totient is φ = 3403328.

The previous prime is 6381251. The next prime is 6381299. The reversal of 6381255 is 5521836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6381255 - 2² = 6381251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381251) 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 7 ways as a sum of consecutive naturals, for example, 212694 + ... + 212723.

It is an arithmetic number, because the mean of its divisors is an integer number (1276254).

Almost surely, 2^6381255 is an apocalyptic number.

6381255 is a deficient number, since it is larger than the sum of its proper divisors (3828777).

6381255 is a wasteful number, since it uses less digits than its factorization.

6381255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425425.

The product of its digits is 7200, while the sum is 30.

The square root of 6381255 is about 2526.1146054762. The cubic root of 6381255 is about 185.4821123739.

It can be divided in two parts, 63 and 81255, that added together give a palindrome (81318).

The spelling of 6381255 in words is "six million, three hundred eighty-one thousand, two hundred fifty-five".