4055721105 has 8 divisors (see below), whose sum is σ = 6489153792. Its totient is φ = 2163051248.

The previous prime is 4055721049. The next prime is 4055721121. The reversal of 4055721105 is 5011275504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4055721105 - 2¹⁵ = 4055688337 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 135190689 + ... + 135190718.

It is an arithmetic number, because the mean of its divisors is an integer number (811144224).

Almost surely, 2^4055721105 is an apocalyptic number.

It is an amenable number.

4055721105 is a deficient number, since it is larger than the sum of its proper divisors (2433432687).

4055721105 is a wasteful number, since it uses less digits than its factorization.

4055721105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270381415.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 4055721105 is about 63684.5436899724. The cubic root of 4055721105 is about 1594.7380662169.

Adding to 4055721105 its reverse (5011275504), we get a palindrome (9066996609).

The spelling of 4055721105 in words is "four billion, fifty-five million, seven hundred twenty-one thousand, one hundred five".