551206641497 has 2 divisors, whose sum is σ = 551206641498. Its totient is φ = 551206641496.

The previous prime is 551206641467. The next prime is 551206641551. The reversal of 551206641497 is 794146602155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 550124823616 + 1081817881 = 741704^2 + 32891^2 .

It is a cyclic number.

It is not a de Polignac number, because 551206641497 - 2¹⁴ = 551206625113 is a prime.

It is not a weakly prime, because it can be changed into another prime (551206641437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275603320748 + 275603320749.

It is an arithmetic number, because the mean of its divisors is an integer number (275603320749).

Almost surely, 2^551206641497 is an apocalyptic number.

It is an amenable number.

551206641497 is a deficient number, since it is larger than the sum of its proper divisors (1).

551206641497 is an equidigital number, since it uses as much as digits as its factorization.

551206641497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 551206641497 in words is "five hundred fifty-one billion, two hundred six million, six hundred forty-one thousand, four hundred ninety-seven".