2051003 has 4 divisors (see below), whose sum is σ = 2084688. Its totient is φ = 2017320.

The previous prime is 2050987. The next prime is 2051041. The reversal of 2051003 is 3001502.

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

It is a cyclic number.

It is not a de Polignac number, because 2051003 - 2⁴ = 2050987 is a prime.

It is a super-2 number, since 2×2051003² = 8413226612018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011003) 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, 16751 + ... + 16872.

It is an arithmetic number, because the mean of its divisors is an integer number (521172).

2^2051003 is an apocalyptic number.

2051003 is a deficient number, since it is larger than the sum of its proper divisors (33685).

2051003 is an equidigital number, since it uses as much as digits as its factorization.

2051003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33684.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 2051003 is about 1432.1323262883. The cubic root of 2051003 is about 127.0541237057.

Adding to 2051003 its reverse (3001502), we get a palindrome (5052505).

The spelling of 2051003 in words is "two million, fifty-one thousand, three".