1000025003 has 4 divisors (see below), whose sum is σ = 1005260928. Its totient is φ = 994789080.

The previous prime is 1000024999. The next prime is 1000025077. The reversal of 1000025003 is 3005200001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3005200001 = 41 ⋅73297561.

It is a cyclic number.

It is not a de Polignac number, because 1000025003 - 2² = 1000024999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000025083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2617676 + ... + 2618057.

It is an arithmetic number, because the mean of its divisors is an integer number (251315232).

Almost surely, 2^1000025003 is an apocalyptic number.

1000025003 is a deficient number, since it is larger than the sum of its proper divisors (5235925).

1000025003 is an equidigital number, since it uses as much as digits as its factorization.

1000025003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235924.

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

The square root of 1000025003 is about 31623.1719313544. The cubic root of 1000025003 is about 1000.0083342639.

Adding to 1000025003 its reverse (3005200001), we get a palindrome (4005225004).

The spelling of 1000025003 in words is "one billion, twenty-five thousand, three".