722445055 has 4 divisors (see below), whose sum is σ = 866934072. Its totient is φ = 577956040.

The previous prime is 722445043. The next prime is 722445083. The reversal of 722445055 is 550544227.

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

It is not a de Polignac number, because 722445055 - 2¹⁹ = 721920767 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 722445055.

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, 72244501 + ... + 72244510.

It is an arithmetic number, because the mean of its divisors is an integer number (216733518).

Almost surely, 2^722445055 is an apocalyptic number.

722445055 is a deficient number, since it is larger than the sum of its proper divisors (144489017).

722445055 is a wasteful number, since it uses less digits than its factorization.

722445055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144489016.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 722445055 is about 26878.3380252574. The cubic root of 722445055 is about 897.2943660816.

The spelling of 722445055 in words is "seven hundred twenty-two million, four hundred forty-five thousand, fifty-five".