6431255 has 8 divisors (see below), whose sum is σ = 7810992. Its totient is φ = 5082688.

The previous prime is 6431239. The next prime is 6431261. The reversal of 6431255 is 5521346.

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 6431255 - 2⁴ = 6431239 is a prime.

It is a super-2 number, since 2×6431255² = 82722081750050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7334 + ... + 8163.

It is an arithmetic number, because the mean of its divisors is an integer number (976374).

Almost surely, 2^6431255 is an apocalyptic number.

6431255 is a deficient number, since it is larger than the sum of its proper divisors (1379737).

6431255 is a wasteful number, since it uses less digits than its factorization.

6431255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15585.

The product of its digits is 3600, while the sum is 26.

The square root of 6431255 is about 2535.9919163909. The cubic root of 6431255 is about 185.9652978001.

Subtracting from 6431255 its reverse (5521346), we obtain a palindrome (909909).

The spelling of 6431255 in words is "six million, four hundred thirty-one thousand, two hundred fifty-five".