28028027555503 has 16 divisors (see below), whose sum is σ = 29142175658400. Its totient is φ = 26936665592320.

The previous prime is 28028027555483. The next prime is 28028027555531. The reversal of 28028027555503 is 30555572082082.

It is a cyclic number.

It is not a de Polignac number, because 28028027555503 - 2⁴¹ = 25829004299951 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 (28028027555533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13295401 + ... + 15258562.

It is an arithmetic number, because the mean of its divisors is an integer number (1821385978650).

Almost surely, 2^{28028027555503} is an apocalyptic number.

28028027555503 is a deficient number, since it is larger than the sum of its proper divisors (1114148102897).

28028027555503 is a wasteful number, since it uses less digits than its factorization.

28028027555503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28554362.

The product of its (nonzero) digits is 6720000, while the sum is 52.

The spelling of 28028027555503 in words is "twenty-eight trillion, twenty-eight billion, twenty-seven million, five hundred fifty-five thousand, five hundred three".