551354312549 has 2 divisors, whose sum is σ = 551354312550. Its totient is φ = 551354312548.

The previous prime is 551354312497. The next prime is 551354312581. The reversal of 551354312549 is 945213453155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426546141025 + 124808171524 = 653105^2 + 353282^2 .

It is a cyclic number.

It is not a de Polignac number, because 551354312549 - 2⁸ = 551354312293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551354312599) 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, 275677156274 + 275677156275.

It is an arithmetic number, because the mean of its divisors is an integer number (275677156275).

Almost surely, 2^551354312549 is an apocalyptic number.

It is an amenable number.

551354312549 is a deficient number, since it is larger than the sum of its proper divisors (1).

551354312549 is an equidigital number, since it uses as much as digits as its factorization.

551354312549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 47.

The spelling of 551354312549 in words is "five hundred fifty-one billion, three hundred fifty-four million, three hundred twelve thousand, five hundred forty-nine".