551005134409 has 2 divisors, whose sum is σ = 551005134410. Its totient is φ = 551005134408.

The previous prime is 551005134397. The next prime is 551005134469. The reversal of 551005134409 is 904431500155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440816323600 + 110188810809 = 663940^2 + 331947^2 .

It is a cyclic number.

It is not a de Polignac number, because 551005134409 - 2¹⁵ = 551005101641 is a prime.

It is not a weakly prime, because it can be changed into another prime (551005134469) 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 as a sum of consecutive naturals, namely, 275502567204 + 275502567205.

It is an arithmetic number, because the mean of its divisors is an integer number (275502567205).

Almost surely, 2^551005134409 is an apocalyptic number.

It is an amenable number.

551005134409 is a deficient number, since it is larger than the sum of its proper divisors (1).

551005134409 is an equidigital number, since it uses as much as digits as its factorization.

551005134409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 551005134409 in words is "five hundred fifty-one billion, five million, one hundred thirty-four thousand, four hundred nine".