551124507643 has 8 divisors (see below), whose sum is σ = 570932953200. Its totient is φ = 531369672288.

The previous prime is 551124507629. The next prime is 551124507667. The reversal of 551124507643 is 346705421155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551124507643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551124507643.

It is not an unprimeable number, because it can be changed into a prime (551124507443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13381621 + ... + 13422742.

It is an arithmetic number, because the mean of its divisors is an integer number (71366619150).

Almost surely, 2^551124507643 is an apocalyptic number.

551124507643 is a deficient number, since it is larger than the sum of its proper divisors (19808445557).

551124507643 is a wasteful number, since it uses less digits than its factorization.

551124507643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26805101.

The product of its (nonzero) digits is 504000, while the sum is 43.

Adding to 551124507643 its reverse (346705421155), we get a palindrome (897829928798).

The spelling of 551124507643 in words is "five hundred fifty-one billion, one hundred twenty-four million, five hundred seven thousand, six hundred forty-three".