25650003 has 4 divisors (see below), whose sum is σ = 34200008. Its totient is φ = 17100000.

The previous prime is 25649993. The next prime is 25650011. The reversal of 25650003 is 30005652.

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

It is not a de Polignac number, because 25650003 - 2⁸ = 25649747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25650013) by changing a digit.

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, 4274998 + ... + 4275003.

It is an arithmetic number, because the mean of its divisors is an integer number (8550002).

Almost surely, 2^25650003 is an apocalyptic number.

25650003 is a deficient number, since it is larger than the sum of its proper divisors (8550005).

25650003 is an equidigital number, since it uses as much as digits as its factorization.

25650003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550004.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25650003 is about 5064.5832010147. The cubic root of 25650003 is about 294.9142832451.

Adding to 25650003 its reverse (30005652), we get a palindrome (55655655).

The spelling of 25650003 in words is "twenty-five million, six hundred fifty thousand, three".