28573000303 has 4 divisors (see below), whose sum is σ = 29815304688. Its totient is φ = 27330695920.

The previous prime is 28573000273. The next prime is 28573000307. The reversal of 28573000303 is 30300037582.

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

It is a cyclic number.

It is not a de Polignac number, because 28573000303 - 2⁵ = 28573000271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573000307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621152158 + ... + 621152203.

It is an arithmetic number, because the mean of its divisors is an integer number (7453826172).

Almost surely, 2^28573000303 is an apocalyptic number.

28573000303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28573000303 is a deficient number, since it is larger than the sum of its proper divisors (1242304385).

28573000303 is a wasteful number, since it uses less digits than its factorization.

28573000303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242304384.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 28573000303 its reverse (30300037582), we get a palindrome (58873037885).

The spelling of 28573000303 in words is "twenty-eight billion, five hundred seventy-three million, three hundred three", and thus it is an aban number.