28055005003 has 4 divisors (see below), whose sum is σ = 28312390480. Its totient is φ = 27797619528.

The previous prime is 28055004983. The next prime is 28055005037. The reversal of 28055005003 is 30050055082.

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 28055005003 - 2²¹ = 28052907851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28055005403) 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, 128692575 + ... + 128692792.

It is an arithmetic number, because the mean of its divisors is an integer number (7078097620).

Almost surely, 2^28055005003 is an apocalyptic number.

28055005003 is a deficient number, since it is larger than the sum of its proper divisors (257385477).

28055005003 is a wasteful number, since it uses less digits than its factorization.

28055005003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257385476.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 28055005003 in words is "twenty-eight billion, fifty-five million, five thousand, three".