551404159 has 2 divisors, whose sum is σ = 551404160. Its totient is φ = 551404158.

The previous prime is 551404157. The next prime is 551404177. The reversal of 551404159 is 951404155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551404159 - 2¹ = 551404157 is a prime.

Together with 551404157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551404153) 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, 275702079 + 275702080.

It is an arithmetic number, because the mean of its divisors is an integer number (275702080).

Almost surely, 2^551404159 is an apocalyptic number.

551404159 is a deficient number, since it is larger than the sum of its proper divisors (1).

551404159 is an equidigital number, since it uses as much as digits as its factorization.

551404159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 551404159 is about 23481.9964866704. The cubic root of 551404159 is about 820.0179249502.

The spelling of 551404159 in words is "five hundred fifty-one million, four hundred four thousand, one hundred fifty-nine".