455555689 has 2 divisors, whose sum is σ = 455555690. Its totient is φ = 455555688.

The previous prime is 455555677. The next prime is 455555701. The reversal of 455555689 is 986555554.

It is a balanced prime because it is at equal distance from previous prime (455555677) and next prime (455555701).

It can be written as a sum of positive squares in only one way, i.e., 399680064 + 55875625 = 19992^2 + 7475^2 .

It is a cyclic number.

It is not a de Polignac number, because 455555689 - 2¹⁷ = 455424617 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (455555629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227777844 + 227777845.

It is an arithmetic number, because the mean of its divisors is an integer number (227777845).

Almost surely, 2^455555689 is an apocalyptic number.

It is an amenable number.

455555689 is a deficient number, since it is larger than the sum of its proper divisors (1).

455555689 is an equidigital number, since it uses as much as digits as its factorization.

455555689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400000, while the sum is 52.

The square root of 455555689 is about 21343.7505841874. The cubic root of 455555689 is about 769.4501550487.

The spelling of 455555689 in words is "four hundred fifty-five million, five hundred fifty-five thousand, six hundred eighty-nine".