2055409705 has 8 divisors (see below), whose sum is σ = 2467559304. Its totient is φ = 1643616000.

The previous prime is 2055409703. The next prime is 2055409717. The reversal of 2055409705 is 5079045502.

It can be written as a sum of positive squares in 4 ways, for example, as 221771664 + 1833638041 = 14892^2 + 42821^2 .

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

It is not a de Polignac number, because 2055409705 - 2¹ = 2055409703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055409703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76096 + ... + 99505.

It is an arithmetic number, because the mean of its divisors is an integer number (308444913).

Almost surely, 2^2055409705 is an apocalyptic number.

It is an amenable number.

2055409705 is a deficient number, since it is larger than the sum of its proper divisors (412149599).

2055409705 is a wasteful number, since it uses less digits than its factorization.

2055409705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177947.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 2055409705 is about 45336.6265286688. The cubic root of 2055409705 is about 1271.4505312485.

The spelling of 2055409705 in words is "two billion, fifty-five million, four hundred nine thousand, seven hundred five".