551443069 has 2 divisors, whose sum is σ = 551443070. Its totient is φ = 551443068.

The previous prime is 551443063. The next prime is 551443073. The reversal of 551443069 is 960344155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431102169 + 120340900 = 20763^2 + 10970^2 .

It is a cyclic number.

It is not a de Polignac number, because 551443069 - 2⁵ = 551443037 is a prime.

It is a super-2 number, since 2×551443069² = 608178916696277522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551443063) 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, 275721534 + 275721535.

It is an arithmetic number, because the mean of its divisors is an integer number (275721535).

Almost surely, 2^551443069 is an apocalyptic number.

It is an amenable number.

551443069 is a deficient number, since it is larger than the sum of its proper divisors (1).

551443069 is an equidigital number, since it uses as much as digits as its factorization.

551443069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 551443069 is about 23482.8249791204. The cubic root of 551443069 is about 820.0372127669.

The spelling of 551443069 in words is "five hundred fifty-one million, four hundred forty-three thousand, sixty-nine".