2000257109 has 4 divisors (see below), whose sum is σ = 2000460000. Its totient is φ = 2000054220.

The previous prime is 2000257099. The next prime is 2000257139. The reversal of 2000257109 is 9017520002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000257109 - 2²⁴ = 1983479893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000257139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85859 + ... + 106640.

It is an arithmetic number, because the mean of its divisors is an integer number (500115000).

Almost surely, 2^2000257109 is an apocalyptic number.

It is an amenable number.

2000257109 is a deficient number, since it is larger than the sum of its proper divisors (202891).

2000257109 is a wasteful number, since it uses less digits than its factorization.

2000257109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202890.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2000257109 is about 44724.2340236253. The cubic root of 2000257109 is about 1259.9750370884.

The spelling of 2000257109 in words is "two billion, two hundred fifty-seven thousand, one hundred nine".