2000500409 has 2 divisors, whose sum is σ = 2000500410. Its totient is φ = 2000500408.

The previous prime is 2000500399. The next prime is 2000500421. The reversal of 2000500409 is 9040050002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1793946025 + 206554384 = 42355^2 + 14372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000500409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2000500499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000250204 + 1000250205.

It is an arithmetic number, because the mean of its divisors is an integer number (1000250205).

Almost surely, 2^2000500409 is an apocalyptic number.

It is an amenable number.

2000500409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000500409 is an equidigital number, since it uses as much as digits as its factorization.

2000500409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2000500409 is about 44726.9539427849. The cubic root of 2000500409 is about 1260.0261204378.

The spelling of 2000500409 in words is "two billion, five hundred thousand, four hundred nine".