2054500209 has 12 divisors (see below), whose sum is σ = 2990980096. Its totient is φ = 1358881272.

The previous prime is 2054500207. The next prime is 2054500289. The reversal of 2054500209 is 9020054502.

2054500209 is a `hidden beast` number, since 2 + 0 + 5 + 450 + 0 + 209 = 666.

It is not a de Polignac number, because 2054500209 - 2¹ = 2054500207 is a prime.

It is a super-2 number, since 2×2054500209² = 8441942217562087362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054500207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897589 + ... + 899874.

Almost surely, 2^2054500209 is an apocalyptic number.

It is an amenable number.

2054500209 is a deficient number, since it is larger than the sum of its proper divisors (936479887).

2054500209 is a wasteful number, since it uses less digits than its factorization.

2054500209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797596 (or 1797593 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2054500209 is about 45326.5949416013. The cubic root of 2054500209 is about 1271.2629693279.

The spelling of 2054500209 in words is "two billion, fifty-four million, five hundred thousand, two hundred nine".