28030052503 has 2 divisors, whose sum is σ = 28030052504. Its totient is φ = 28030052502.

The previous prime is 28030052473. The next prime is 28030052507. The reversal of 28030052503 is 30525003082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28030052503 is a prime.

It is a super-3 number, since 3×28030052503³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28030052507) by changing a digit.

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 as a sum of consecutive naturals, namely, 14015026251 + 14015026252.

It is an arithmetic number, because the mean of its divisors is an integer number (14015026252).

Almost surely, 2^28030052503 is an apocalyptic number.

28030052503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28030052503 is an equidigital number, since it uses as much as digits as its factorization.

28030052503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 28030052503 its reverse (30525003082), we get a palindrome (58555055585).

The spelling of 28030052503 in words is "twenty-eight billion, thirty million, fifty-two thousand, five hundred three".