28005030025305 has 32 divisors (see below), whose sum is σ = 45151866270720. Its totient is φ = 14821418888640.

The previous prime is 28005030025177. The next prime is 28005030025331. The reversal of 28005030025305 is 50352003050082.

It is not a de Polignac number, because 28005030025305 - 2⁷ = 28005030025177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52315134 + ... + 52847736.

It is an arithmetic number, because the mean of its divisors is an integer number (1410995820960).

Almost surely, 2^{28005030025305} is an apocalyptic number.

It is an amenable number.

28005030025305 is a deficient number, since it is larger than the sum of its proper divisors (17146836245415).

28005030025305 is a wasteful number, since it uses less digits than its factorization.

28005030025305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559501.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 28005030025305 its reverse (50352003050082), we get a palindrome (78357033075387).

The spelling of 28005030025305 in words is "twenty-eight trillion, five billion, thirty million, twenty-five thousand, three hundred five".