28553535503 has 4 divisors (see below), whose sum is σ = 28553933688. Its totient is φ = 28553137320.

The previous prime is 28553535499. The next prime is 28553535553. The reversal of 28553535503 is 30553535582.

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 28553535503 - 2² = 28553535499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28553535553) 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 in 3 ways as a sum of consecutive naturals, for example, 58376 + ... + 245997.

It is an arithmetic number, because the mean of its divisors is an integer number (7138483422).

Almost surely, 2^28553535503 is an apocalyptic number.

28553535503 is a deficient number, since it is larger than the sum of its proper divisors (398185).

28553535503 is an equidigital number, since it uses as much as digits as its factorization.

28553535503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398184.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 28553535503 in words is "twenty-eight billion, five hundred fifty-three million, five hundred thirty-five thousand, five hundred three".