28005550328253 has 8 divisors (see below), whose sum is σ = 37343727546048. Its totient is φ = 18668869997984.

The previous prime is 28005550328209. The next prime is 28005550328299. The reversal of 28005550328253 is 35282305550082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28005550328253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28005550328053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374178225 + ... + 374253062.

It is an arithmetic number, because the mean of its divisors is an integer number (4667965943256).

Almost surely, 2^{28005550328253} is an apocalyptic number.

It is an amenable number.

28005550328253 is a deficient number, since it is larger than the sum of its proper divisors (9338177217795).

28005550328253 is a wasteful number, since it uses less digits than its factorization.

28005550328253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748443763.

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 28005550328253 in words is "twenty-eight trillion, five billion, five hundred fifty million, three hundred twenty-eight thousand, two hundred fifty-three".