551849 has 2 divisors, whose sum is σ = 551850. Its totient is φ = 551848.

The previous prime is 551843. The next prime is 551861. The reversal of 551849 is 948155.

551849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446224 + 105625 = 668^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 551849 - 2¹² = 547753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (551843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275924 + 275925.

It is an arithmetic number, because the mean of its divisors is an integer number (275925).

2⁵⁵¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

551849 is a deficient number, since it is larger than the sum of its proper divisors (1).

551849 is an equidigital number, since it uses as much as digits as its factorization.

551849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 551849 is about 742.8653983058. The cubic root of 551849 is about 82.0238380030.

The spelling of 551849 in words is "five hundred fifty-one thousand, eight hundred forty-nine".