2056001855 has 8 divisors (see below), whose sum is σ = 2574472032. Its totient is φ = 1573288288.

The previous prime is 2056001819. The next prime is 2056001863. The reversal of 2056001855 is 5581006502.

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 2056001855 - 2⁶ = 2056001791 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 8939024 + ... + 8939253.

It is an arithmetic number, because the mean of its divisors is an integer number (321809004).

Almost surely, 2^2056001855 is an apocalyptic number.

2056001855 is a deficient number, since it is larger than the sum of its proper divisors (518470177).

2056001855 is a wasteful number, since it uses less digits than its factorization.

2056001855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17878305.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 2056001855 is about 45343.1566501495. The cubic root of 2056001855 is about 1271.5726183667.

The spelling of 2056001855 in words is "two billion, fifty-six million, one thousand, eight hundred fifty-five".