551322330533 has 4 divisors (see below), whose sum is σ = 593731740588. Its totient is φ = 508912920480.

The previous prime is 551322330523. The next prime is 551322330569. The reversal of 551322330533 is 335033223155.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 372170763364 + 179151567169 = 610058^2 + 423263^2 .

It is a cyclic number.

It is not a de Polignac number, because 551322330533 - 2¹⁸ = 551322068389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551322330493 and 551322330502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551322330523) 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 3 ways as a sum of consecutive naturals, for example, 21204705008 + ... + 21204705033.

It is an arithmetic number, because the mean of its divisors is an integer number (148432935147).

Almost surely, 2^551322330533 is an apocalyptic number.

It is an amenable number.

551322330533 is a deficient number, since it is larger than the sum of its proper divisors (42409410055).

551322330533 is a wasteful number, since it uses less digits than its factorization.

551322330533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42409410054.

The product of its (nonzero) digits is 121500, while the sum is 35.

Adding to 551322330533 its reverse (335033223155), we get a palindrome (886355553688).

The spelling of 551322330533 in words is "five hundred fifty-one billion, three hundred twenty-two million, three hundred thirty thousand, five hundred thirty-three".