2556442006 has 8 divisors (see below), whose sum is σ = 3839537880. Its totient is φ = 1276596048.

The previous prime is 2556441971. The next prime is 2556442013. The reversal of 2556442006 is 6002446552.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 810511 + ... + 813658.

It is an arithmetic number, because the mean of its divisors is an integer number (479942235).

Almost surely, 2^2556442006 is an apocalyptic number.

2556442006 is a deficient number, since it is larger than the sum of its proper divisors (1283095874).

2556442006 is a wasteful number, since it uses less digits than its factorization.

2556442006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624958.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2556442006 is about 50561.2698218706. The cubic root of 2556442006 is about 1367.3467047399.

Adding to 2556442006 its reverse (6002446552), we get a palindrome (8558888558).

The spelling of 2556442006 in words is "two billion, five hundred fifty-six million, four hundred forty-two thousand, six".