551340011 has 2 divisors, whose sum is σ = 551340012. Its totient is φ = 551340010.

The previous prime is 551340007. The next prime is 551340029. The reversal of 551340011 is 110043155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551340011 - 2² = 551340007 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (551340091) 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, 275670005 + 275670006.

It is an arithmetic number, because the mean of its divisors is an integer number (275670006).

Almost surely, 2^551340011 is an apocalyptic number.

551340011 is a deficient number, since it is larger than the sum of its proper divisors (1).

551340011 is an equidigital number, since it uses as much as digits as its factorization.

551340011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 551340011 is about 23480.6305494550. The cubic root of 551340011 is about 819.9861245917.

Adding to 551340011 its reverse (110043155), we get a palindrome (661383166).

The spelling of 551340011 in words is "five hundred fifty-one million, three hundred forty thousand, eleven".