28280500529 has 2 divisors, whose sum is σ = 28280500530. Its totient is φ = 28280500528.

The previous prime is 28280500483. The next prime is 28280500531. The reversal of 28280500529 is 92500508282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15457202929 + 12823297600 = 124327^2 + 113240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28280500529 is a prime.

Together with 28280500531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28280500559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14140250264 + 14140250265.

It is an arithmetic number, because the mean of its divisors is an integer number (14140250265).

Almost surely, 2^28280500529 is an apocalyptic number.

It is an amenable number.

28280500529 is a deficient number, since it is larger than the sum of its proper divisors (1).

28280500529 is an equidigital number, since it uses as much as digits as its factorization.

28280500529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 28280500529 in words is "twenty-eight billion, two hundred eighty million, five hundred thousand, five hundred twenty-nine".