28002800005503 has 32 divisors (see below), whose sum is σ = 39468801576960. Its totient is φ = 17611085149920.

The previous prime is 28002800005489. The next prime is 28002800005559. The reversal of 28002800005503 is 30550000820082.

It is not a de Polignac number, because 28002800005503 - 2⁴ = 28002800005487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002800004503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22344448 + ... + 23564378.

It is an arithmetic number, because the mean of its divisors is an integer number (1233400049280).

Almost surely, 2^{28002800005503} is an apocalyptic number.

28002800005503 is a deficient number, since it is larger than the sum of its proper divisors (11466001571457).

28002800005503 is a wasteful number, since it uses less digits than its factorization.

28002800005503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221659.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 28002800005503 its reverse (30550000820082), we get a palindrome (58552800825585).

The spelling of 28002800005503 in words is "twenty-eight trillion, two billion, eight hundred million, five thousand, five hundred three".