28030300250 has 16 divisors (see below), whose sum is σ = 52472722536. Its totient is φ = 11212120000.

The previous prime is 28030300237. The next prime is 28030300279. The reversal of 28030300250 is 5200303082.

It can be written as a sum of positive squares in 4 ways, for example, as 1367002729 + 26663297521 = 36973^2 + 163289^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56060351 + ... + 56060850.

Almost surely, 2^28030300250 is an apocalyptic number.

28030300250 is a deficient number, since it is larger than the sum of its proper divisors (24442422286).

28030300250 is a wasteful number, since it uses less digits than its factorization.

28030300250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112121218 (or 112121208 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 28030300250 in words is "twenty-eight billion, thirty million, three hundred thousand, two hundred fifty".