28003025002 has 4 divisors (see below), whose sum is σ = 42004537506. Its totient is φ = 14001512500.

The previous prime is 28003024967. The next prime is 28003025003. The reversal of 28003025002 is 20052030082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23687980281 + 4315044721 = 153909^2 + 65689^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28003025003) 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 as a sum of consecutive naturals, namely, 7000756249 + ... + 7000756252.

Almost surely, 2^28003025002 is an apocalyptic number.

28003025002 is a deficient number, since it is larger than the sum of its proper divisors (14001512504).

28003025002 is a wasteful number, since it uses less digits than its factorization.

28003025002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14001512503.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 28003025002 its reverse (20052030082), we get a palindrome (48055055084).

The spelling of 28003025002 in words is "twenty-eight billion, three million, twenty-five thousand, two".