6255638 has 4 divisors (see below), whose sum is σ = 9383460. Its totient is φ = 3127818.

The previous prime is 6255631. The next prime is 6255649. The reversal of 6255638 is 8365526.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6255598 and 6255607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255631) 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 as a sum of consecutive naturals, namely, 1563908 + ... + 1563911.

It is an arithmetic number, because the mean of its divisors is an integer number (2345865).

Almost surely, 2^6255638 is an apocalyptic number.

6255638 is a deficient number, since it is larger than the sum of its proper divisors (3127822).

6255638 is a wasteful number, since it uses less digits than its factorization.

6255638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127821.

The product of its digits is 43200, while the sum is 35.

The square root of 6255638 is about 2501.1273458183. The cubic root of 6255638 is about 184.2569464711.

The spelling of 6255638 in words is "six million, two hundred fifty-five thousand, six hundred thirty-eight".