551322553543 has 8 divisors (see below), whose sum is σ = 570108822768. Its totient is φ = 532846801344.

The previous prime is 551322553511. The next prime is 551322553577. The reversal of 551322553543 is 345355223155.

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 551322553543 - 2⁵ = 551322553511 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 551322553543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551322553583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77625646 + ... + 77632747.

It is an arithmetic number, because the mean of its divisors is an integer number (71263602846).

Almost surely, 2^551322553543 is an apocalyptic number.

551322553543 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

551322553543 is a deficient number, since it is larger than the sum of its proper divisors (18786269225).

551322553543 is a wasteful number, since it uses less digits than its factorization.

551322553543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155258513.

The product of its digits is 1350000, while the sum is 43.

Adding to 551322553543 its reverse (345355223155), we get a palindrome (896677776698).

The spelling of 551322553543 in words is "five hundred fifty-one billion, three hundred twenty-two million, five hundred fifty-three thousand, five hundred forty-three".