28083553 has 4 divisors (see below), whose sum is σ = 28479168. Its totient is φ = 27687940.

The previous prime is 28083547. The next prime is 28083563. The reversal of 28083553 is 35538082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28083553 - 2¹⁷ = 27952481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28083533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197701 + ... + 197842.

It is an arithmetic number, because the mean of its divisors is an integer number (7119792).

Almost surely, 2^28083553 is an apocalyptic number.

It is an amenable number.

28083553 is a deficient number, since it is larger than the sum of its proper divisors (395615).

28083553 is an equidigital number, since it uses as much as digits as its factorization.

28083553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395614.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 28083553 is about 5299.3917575510. The cubic root of 28083553 is about 303.9606402470.

The spelling of 28083553 in words is "twenty-eight million, eighty-three thousand, five hundred fifty-three".