25305313003 has 4 divisors (see below), whose sum is σ = 25305631848. Its totient is φ = 25304994160.

The previous prime is 25305312973. The next prime is 25305313009. The reversal of 25305313003 is 30031350352.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25305313003 - 2²⁹ = 24768442091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25305313009) 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, 63975 + ... + 233887.

It is an arithmetic number, because the mean of its divisors is an integer number (6326407962).

Almost surely, 2^25305313003 is an apocalyptic number.

25305313003 is a deficient number, since it is larger than the sum of its proper divisors (318845).

25305313003 is a wasteful number, since it uses less digits than its factorization.

25305313003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318844.

The product of its (nonzero) digits is 4050, while the sum is 25.

Adding to 25305313003 its reverse (30031350352), we get a palindrome (55336663355).

The spelling of 25305313003 in words is "twenty-five billion, three hundred five million, three hundred thirteen thousand, three".