551005134817 has 2 divisors, whose sum is σ = 551005134818. Its totient is φ = 551005134816.

The previous prime is 551005134791. The next prime is 551005134821. The reversal of 551005134817 is 718431500155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524522129121 + 26483005696 = 724239^2 + 162736^2 .

It is a cyclic number.

It is not a de Polignac number, because 551005134817 - 2¹⁹ = 551004610529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551005134817.

It is not a weakly prime, because it can be changed into another prime (551005134857) 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, 275502567408 + 275502567409.

It is an arithmetic number, because the mean of its divisors is an integer number (275502567409).

Almost surely, 2^551005134817 is an apocalyptic number.

It is an amenable number.

551005134817 is a deficient number, since it is larger than the sum of its proper divisors (1).

551005134817 is an equidigital number, since it uses as much as digits as its factorization.

551005134817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 551005134817 in words is "five hundred fifty-one billion, five million, one hundred thirty-four thousand, eight hundred seventeen".