556790669 has 2 divisors, whose sum is σ = 556790670. Its totient is φ = 556790668.

The previous prime is 556790653. The next prime is 556790671. The reversal of 556790669 is 966097655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550465444 + 6325225 = 23462^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 556790669 - 2⁴ = 556790653 is a prime.

It is a super-2 number, since 2×556790669² = 620031698170935122, which contains 22 as substring.

Together with 556790671, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556790669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556790369) 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, 278395334 + 278395335.

It is an arithmetic number, because the mean of its divisors is an integer number (278395335).

Almost surely, 2^556790669 is an apocalyptic number.

It is an amenable number.

556790669 is a deficient number, since it is larger than the sum of its proper divisors (1).

556790669 is an equidigital number, since it uses as much as digits as its factorization.

556790669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3061800, while the sum is 53.

The square root of 556790669 is about 23596.4122060961. The cubic root of 556790669 is about 822.6794508719.

The spelling of 556790669 in words is "five hundred fifty-six million, seven hundred ninety thousand, six hundred sixty-nine".