551243054133 has 24 divisors (see below), whose sum is σ = 823892303520. Its totient is φ = 354738777120.

The previous prime is 551243054123. The next prime is 551243054143. The reversal of 551243054133 is 331450342155.

551243054133 is a `hidden beast` number, since 5 + 51 + 2 + 4 + 30 + 541 + 33 = 666.

It is an interprime number because it is at equal distance from previous prime (551243054123) and next prime (551243054143).

It is not a de Polignac number, because 551243054133 - 2⁵ = 551243054101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551243054113) 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 23 ways as a sum of consecutive naturals, for example, 858538 + ... + 1356308.

It is an arithmetic number, because the mean of its divisors is an integer number (34328845980).

Almost surely, 2^551243054133 is an apocalyptic number.

It is an amenable number.

551243054133 is a deficient number, since it is larger than the sum of its proper divisors (272649249387).

551243054133 is a wasteful number, since it uses less digits than its factorization.

551243054133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502049 (or 502046 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 551243054133 its reverse (331450342155), we get a palindrome (882693396288).

The spelling of 551243054133 in words is "five hundred fifty-one billion, two hundred forty-three million, fifty-four thousand, one hundred thirty-three".