455563709 has 2 divisors, whose sum is σ = 455563710. Its totient is φ = 455563708.

The previous prime is 455563651. The next prime is 455563711. The reversal of 455563709 is 907365554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294019609 + 161544100 = 17147^2 + 12710^2 .

It is a cyclic number.

It is not a de Polignac number, because 455563709 - 2⁸ = 455563453 is a prime.

Together with 455563711, 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 455563709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455563729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227781854 + 227781855.

It is an arithmetic number, because the mean of its divisors is an integer number (227781855).

Almost surely, 2^455563709 is an apocalyptic number.

It is an amenable number.

455563709 is a deficient number, since it is larger than the sum of its proper divisors (1).

455563709 is an equidigital number, since it uses as much as digits as its factorization.

455563709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 455563709 is about 21343.9384603686. The cubic root of 455563709 is about 769.4546703796.

The spelling of 455563709 in words is "four hundred fifty-five million, five hundred sixty-three thousand, seven hundred nine".