28555511108003 has 16 divisors (see below), whose sum is σ = 32940653985792. Its totient is φ = 24509415144000.

The previous prime is 28555511107999. The next prime is 28555511108011. The reversal of 28555511108003 is 30080111555582.

It is a cyclic number.

It is not a de Polignac number, because 28555511108003 - 2² = 28555511107999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28555511108203) 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, 1021211651 + ... + 1021239612.

It is an arithmetic number, because the mean of its divisors is an integer number (2058790874112).

Almost surely, 2^{28555511108003} is an apocalyptic number.

28555511108003 is a deficient number, since it is larger than the sum of its proper divisors (4385142877789).

28555511108003 is a wasteful number, since it uses less digits than its factorization.

28555511108003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042451346.

The product of its (nonzero) digits is 240000, while the sum is 44.

The spelling of 28555511108003 in words is "twenty-eight trillion, five hundred fifty-five billion, five hundred eleven million, one hundred eight thousand, three".