2000947505 has 4 divisors (see below), whose sum is σ = 2401137012. Its totient is φ = 1600758000.

The previous prime is 2000947499. The next prime is 2000947511. The reversal of 2000947505 is 5057490002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2000947499) and next prime (2000947511).

It can be written as a sum of positive squares in 2 ways, for example, as 489604129 + 1511343376 = 22127^2 + 38876^2 .

It is not a de Polignac number, because 2000947505 - 2⁶ = 2000947441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200094746 + ... + 200094755.

It is an arithmetic number, because the mean of its divisors is an integer number (600284253).

Almost surely, 2^2000947505 is an apocalyptic number.

It is an amenable number.

2000947505 is a deficient number, since it is larger than the sum of its proper divisors (400189507).

2000947505 is an equidigital number, since it uses as much as digits as its factorization.

2000947505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400189506.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2000947505 is about 44731.9517235723. The cubic root of 2000947505 is about 1260.1199820657.

The spelling of 2000947505 in words is "two billion, nine hundred forty-seven thousand, five hundred five".