4320645055 has 4 divisors (see below), whose sum is σ = 5184774072. Its totient is φ = 3456516040.

The previous prime is 4320645001. The next prime is 4320645073. The reversal of 4320645055 is 5505460234.

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

It is not a de Polignac number, because 4320645055 - 2²¹ = 4318547903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320645055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432064501 + ... + 432064510.

It is an arithmetic number, because the mean of its divisors is an integer number (1296193518).

Almost surely, 2^4320645055 is an apocalyptic number.

4320645055 is a deficient number, since it is larger than the sum of its proper divisors (864129017).

4320645055 is an equidigital number, since it uses as much as digits as its factorization.

4320645055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864129016.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 4320645055 is about 65731.6138170972. The cubic root of 4320645055 is about 1628.7316283603.

The spelling of 4320645055 in words is "four billion, three hundred twenty million, six hundred forty-five thousand, fifty-five".