28555855583 has 2 divisors, whose sum is σ = 28555855584. Its totient is φ = 28555855582.

The previous prime is 28555855567. The next prime is 28555855591. The reversal of 28555855583 is 38555855582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28555855583 - 2⁴ = 28555855567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28555852583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277927791 + 14277927792.

It is an arithmetic number, because the mean of its divisors is an integer number (14277927792).

Almost surely, 2^28555855583 is an apocalyptic number.

28555855583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28555855583 is an equidigital number, since it uses as much as digits as its factorization.

28555855583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000000, while the sum is 59.

Subtracting 28555855583 from its reverse (38555855582), we obtain a palindrome (9999999999).

The spelling of 28555855583 in words is "twenty-eight billion, five hundred fifty-five million, eight hundred fifty-five thousand, five hundred eighty-three".