423435055 has 4 divisors (see below), whose sum is σ = 508122072. Its totient is φ = 338748040.

The previous prime is 423435049. The next prime is 423435091. The reversal of 423435055 is 550534324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423435055 - 2⁷ = 423434927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 42343501 + ... + 42343510.

It is an arithmetic number, because the mean of its divisors is an integer number (127030518).

Almost surely, 2^423435055 is an apocalyptic number.

423435055 is a deficient number, since it is larger than the sum of its proper divisors (84687017).

423435055 is an equidigital number, since it uses as much as digits as its factorization.

423435055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84687016.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 423435055 is about 20577.5376320881. The cubic root of 423435055 is about 750.9233398286.

Adding to 423435055 its reverse (550534324), we get a palindrome (973969379).

The spelling of 423435055 in words is "four hundred twenty-three million, four hundred thirty-five thousand, fifty-five".