25630603 has 12 divisors (see below), whose sum is σ = 26911600. Its totient is φ = 24392016.

The previous prime is 25630597. The next prime is 25630607. The reversal of 25630603 is 30603652.

It is not a de Polignac number, because 25630603 - 2⁵ = 25630571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25630607) 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 11 ways as a sum of consecutive naturals, for example, 128698 + ... + 128896.

Almost surely, 2^25630603 is an apocalyptic number.

25630603 is a deficient number, since it is larger than the sum of its proper divisors (1280997).

25630603 is an equidigital number, since it uses as much as digits as its factorization.

25630603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 25630603 is about 5062.6675774734. The cubic root of 25630603 is about 294.8399131418.

The spelling of 25630603 in words is "twenty-five million, six hundred thirty thousand, six hundred three".