551446943 has 2 divisors, whose sum is σ = 551446944. Its totient is φ = 551446942.

The previous prime is 551446897. The next prime is 551446963. The reversal of 551446943 is 349644155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551446943 - 2¹² = 551442847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551446943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551446963) 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, 275723471 + 275723472.

It is an arithmetic number, because the mean of its divisors is an integer number (275723472).

Almost surely, 2^551446943 is an apocalyptic number.

551446943 is a deficient number, since it is larger than the sum of its proper divisors (1).

551446943 is an equidigital number, since it uses as much as digits as its factorization.

551446943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 551446943 is about 23482.9074647923. The cubic root of 551446943 is about 820.0391330719.

The spelling of 551446943 in words is "five hundred fifty-one million, four hundred forty-six thousand, nine hundred forty-three".