25305003 has 12 divisors (see below), whose sum is σ = 37540048. Its totient is φ = 16413840.

The previous prime is 25305001. The next prime is 25305013. The reversal of 25305003 is 30050352.

It is not a de Polignac number, because 25305003 - 2¹ = 25305001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25305001) 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, 37663 + ... + 38328.

Almost surely, 2^25305003 is an apocalyptic number.

25305003 is a deficient number, since it is larger than the sum of its proper divisors (12235045).

25305003 is a wasteful number, since it uses less digits than its factorization.

25305003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76034 (or 76031 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 25305003 is about 5030.4078363489. The cubic root of 25305003 is about 293.5860828054.

Adding to 25305003 its reverse (30050352), we get a palindrome (55355355).

The spelling of 25305003 in words is "twenty-five million, three hundred five thousand, three".