2000051 has 4 divisors (see below), whose sum is σ = 2024232.
Its totient is φ = 1975872.
The previous prime is 2000039. The next prime is 2000081. The reversal of 2000051 is 1500002.
Adding to 2000051 its reverse (1500002), we get a palindrome (3500053).
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2000051 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2000081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11966 + ... + 12131.
It is an arithmetic number, because the mean of its divisors is an integer number (506058).
22000051 is an apocalyptic number.
2000051 is a deficient number, since it is larger than the sum of its proper divisors (24181).
2000051 is an equidigital number, since it uses as much as digits as its factorization.
2000051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24180.
The product of its (nonzero) digits is 10, while the sum is 8.
The square root of 2000051 is about 1414.2315934811.
The cubic root of 2000051 is about 125.9931759133.
The spelling of 2000051 in words is "two million, fifty-one", and thus it is an aban number and an uban number.