305088025 has 12 divisors (see below), whose sum is σ = 412701264. Its totient is φ = 221882000.

The previous prime is 305087999. The next prime is 305088029. The reversal of 305088025 is 520880503.

It is not a de Polignac number, because 305088025 - 2⁷ = 305087897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305088029) 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, 554431 + ... + 554980.

It is an arithmetic number, because the mean of its divisors is an integer number (34391772).

Almost surely, 2^305088025 is an apocalyptic number.

It is an amenable number.

305088025 is a deficient number, since it is larger than the sum of its proper divisors (107613239).

305088025 is a wasteful number, since it uses less digits than its factorization.

305088025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109432 (or 1109427 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 305088025 is about 17466.7691631853. The cubic root of 305088025 is about 673.1963002242.

The spelling of 305088025 in words is "three hundred five million, eighty-eight thousand, twenty-five".