2056305 has 8 divisors (see below), whose sum is σ = 3290112. Its totient is φ = 1096688.

The previous prime is 2056289. The next prime is 2056319. The reversal of 2056305 is 5036502.

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 2056305 - 2⁴ = 2056289 is a prime.

2056305 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68529 + ... + 68558.

It is an arithmetic number, because the mean of its divisors is an integer number (411264).

2^2056305 is an apocalyptic number.

It is an amenable number.

2056305 is a deficient number, since it is larger than the sum of its proper divisors (1233807).

2056305 is a wasteful number, since it uses less digits than its factorization.

2056305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137095.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2056305 is about 1433.9822174630. The cubic root of 2056305 is about 127.1635110518.

The spelling of 2056305 in words is "two million, fifty-six thousand, three hundred five".