551554243133 has 2 divisors, whose sum is σ = 551554243134. Its totient is φ = 551554243132.

The previous prime is 551554243103. The next prime is 551554243193. The reversal of 551554243133 is 331342455155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517619813764 + 33934429369 = 719458^2 + 184213^2 .

It is a cyclic number.

It is not a de Polignac number, because 551554243133 - 2⁶ = 551554243069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551554243103) 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 as a sum of consecutive naturals, namely, 275777121566 + 275777121567.

It is an arithmetic number, because the mean of its divisors is an integer number (275777121567).

Almost surely, 2^551554243133 is an apocalyptic number.

It is an amenable number.

551554243133 is a deficient number, since it is larger than the sum of its proper divisors (1).

551554243133 is an equidigital number, since it uses as much as digits as its factorization.

551554243133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540000, while the sum is 41.

Adding to 551554243133 its reverse (331342455155), we get a palindrome (882896698288).

The spelling of 551554243133 in words is "five hundred fifty-one billion, five hundred fifty-four million, two hundred forty-three thousand, one hundred thirty-three".