2050805 has 16 divisors (see below), whose sum is σ = 2585088. Its totient is φ = 1560000.

The previous prime is 2050787. The next prime is 2050813. The reversal of 2050805 is 5080502.

It is not a de Polignac number, because 2050805 - 2¹⁴ = 2034421 is a prime.

It is a super-2 number, since 2×2050805² = 8411602296050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15590 + ... + 15720.

It is an arithmetic number, because the mean of its divisors is an integer number (161568).

2^2050805 is an apocalyptic number.

It is an amenable number.

2050805 is a deficient number, since it is larger than the sum of its proper divisors (534283).

2050805 is a wasteful number, since it uses less digits than its factorization.

2050805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2050805 is about 1432.0631969295. The cubic root of 2050805 is about 127.0500350515.

The spelling of 2050805 in words is "two million, fifty thousand, eight hundred five".