557766709 has 2 divisors, whose sum is σ = 557766710. Its totient is φ = 557766708.

The previous prime is 557766689. The next prime is 557766761. The reversal of 557766709 is 907667755.

557766709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (557766761) can be obtained adding 557766709 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433555684 + 124211025 = 20822^2 + 11145^2 .

It is a cyclic number.

It is not a de Polignac number, because 557766709 - 2⁹ = 557766197 is a prime.

It is a super-2 number, since 2×557766709² = 622207403337381362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557766779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278883354 + 278883355.

It is an arithmetic number, because the mean of its divisors is an integer number (278883355).

Almost surely, 2^557766709 is an apocalyptic number.

It is an amenable number.

557766709 is a deficient number, since it is larger than the sum of its proper divisors (1).

557766709 is an equidigital number, since it uses as much as digits as its factorization.

557766709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The square root of 557766709 is about 23617.0851080314. The cubic root of 557766709 is about 823.1598823626.

The spelling of 557766709 in words is "five hundred fifty-seven million, seven hundred sixty-six thousand, seven hundred nine".