25005030305 has 16 divisors (see below), whose sum is σ = 30123757440. Its totient is φ = 19925672832.

The previous prime is 25005030301. The next prime is 25005030317. The reversal of 25005030305 is 50303050052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25005030305 - 2² = 25005030301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25005030301) 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 15 ways as a sum of consecutive naturals, for example, 1674482 + ... + 1689348.

It is an arithmetic number, because the mean of its divisors is an integer number (1882734840).

Almost surely, 2^25005030305 is an apocalyptic number.

It is an amenable number.

25005030305 is a deficient number, since it is larger than the sum of its proper divisors (5118727135).

25005030305 is a wasteful number, since it uses less digits than its factorization.

25005030305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16168.

The product of its (nonzero) digits is 2250, while the sum is 23.

Adding to 25005030305 its reverse (50303050052), we get a palindrome (75308080357).

The spelling of 25005030305 in words is "twenty-five billion, five million, thirty thousand, three hundred five".