28053522985 has 8 divisors (see below), whose sum is σ = 33788451456. Its totient is φ = 22360002480.

The previous prime is 28053522983. The next prime is 28053523013. The reversal of 28053522985 is 58922535082.

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

It is not a de Polignac number, because 28053522985 - 2¹ = 28053522983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28053522983) 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, 10350499 + ... + 10353208.

It is an arithmetic number, because the mean of its divisors is an integer number (4223556432).

Almost surely, 2^28053522985 is an apocalyptic number.

It is an amenable number.

28053522985 is a deficient number, since it is larger than the sum of its proper divisors (5734928471).

28053522985 is a wasteful number, since it uses less digits than its factorization.

28053522985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703983.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 28053522985 in words is "twenty-eight billion, fifty-three million, five hundred twenty-two thousand, nine hundred eighty-five".