6424255 has 4 divisors (see below), whose sum is σ = 7709112. Its totient is φ = 5139400.

The previous prime is 6424241. The next prime is 6424277. The reversal of 6424255 is 5524246.

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

It is not a de Polignac number, because 6424255 - 2¹⁹ = 5899967 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 642421 + ... + 642430.

It is an arithmetic number, because the mean of its divisors is an integer number (1927278).

Almost surely, 2^6424255 is an apocalyptic number.

6424255 is a deficient number, since it is larger than the sum of its proper divisors (1284857).

6424255 is a wasteful number, since it uses less digits than its factorization.

6424255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284856.

The product of its digits is 9600, while the sum is 28.

The square root of 6424255 is about 2534.6114100587. The cubic root of 6424255 is about 185.8978029559.

Subtracting from 6424255 its reverse (5524246), we obtain a palindrome (900009).

The spelling of 6424255 in words is "six million, four hundred twenty-four thousand, two hundred fifty-five".