28025005529 has 16 divisors (see below), whose sum is σ = 32312390400. Its totient is φ = 24126568704.

The previous prime is 28025005507. The next prime is 28025005537. The reversal of 28025005529 is 92550052082.

It is a cyclic number.

It is not a de Polignac number, because 28025005529 - 2²⁸ = 27756570073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28025005492 and 28025005501.

It is not an unprimeable number, because it can be changed into a prime (28025005559) 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 15 ways as a sum of consecutive naturals, for example, 1486577 + ... + 1505310.

It is an arithmetic number, because the mean of its divisors is an integer number (2019524400).

Almost surely, 2^28025005529 is an apocalyptic number.

28025005529 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28025005529 is a deficient number, since it is larger than the sum of its proper divisors (4287384871).

28025005529 is a wasteful number, since it uses less digits than its factorization.

28025005529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991952.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 28025005529 in words is "twenty-eight billion, twenty-five million, five thousand, five hundred twenty-nine".