551617222009 has 8 divisors (see below), whose sum is σ = 630628523840. Its totient is φ = 472658130576.

The previous prime is 551617222007. The next prime is 551617222021. The reversal of 551617222009 is 900222716155.

It is a happy number.

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 551617222009 - 2¹ = 551617222007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551617222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13029954 + ... + 13072219.

It is an arithmetic number, because the mean of its divisors is an integer number (78828565480).

Almost surely, 2^551617222009 is an apocalyptic number.

It is an amenable number.

551617222009 is a deficient number, since it is larger than the sum of its proper divisors (79011301831).

551617222009 is a wasteful number, since it uses less digits than its factorization.

551617222009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26105199.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 551617222009 in words is "five hundred fifty-one billion, six hundred seventeen million, two hundred twenty-two thousand, nine".