30505005025 has 24 divisors (see below), whose sum is σ = 42687892800. Its totient is φ = 21420436800.

The previous prime is 30505004863. The next prime is 30505005031. The reversal of 30505005025 is 52050050503.

It is not a de Polignac number, because 30505005025 - 2⁹ = 30505004513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1904565 + ... + 1920514.

It is an arithmetic number, because the mean of its divisors is an integer number (1778662200).

Almost surely, 2^30505005025 is an apocalyptic number.

It is an amenable number.

30505005025 is a deficient number, since it is larger than the sum of its proper divisors (12182887775).

30505005025 is a wasteful number, since it uses less digits than its factorization.

30505005025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825129 (or 3825124 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

Adding to 30505005025 its reverse (52050050503), we get a palindrome (82555055528).

The spelling of 30505005025 in words is "thirty billion, five hundred five million, five thousand, twenty-five".