28075005535 has 4 divisors (see below), whose sum is σ = 33690006648. Its totient is φ = 22460004424.

The previous prime is 28075005533. The next prime is 28075005551. The reversal of 28075005535 is 53550057082.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28075005535 - 2¹ = 28075005533 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 (28075005533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2807500549 + ... + 2807500558.

It is an arithmetic number, because the mean of its divisors is an integer number (8422501662).

Almost surely, 2^28075005535 is an apocalyptic number.

28075005535 is a deficient number, since it is larger than the sum of its proper divisors (5615001113).

28075005535 is an equidigital number, since it uses as much as digits as its factorization.

28075005535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615001112.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 28075005535 in words is "twenty-eight billion, seventy-five million, five thousand, five hundred thirty-five".