28000525249 has 2 divisors, whose sum is σ = 28000525250. Its totient is φ = 28000525248.

The previous prime is 28000525193. The next prime is 28000525271. The reversal of 28000525249 is 94252500082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24074625600 + 3925899649 = 155160^2 + 62657^2 .

It is a cyclic number.

It is not a de Polignac number, because 28000525249 - 2¹³ = 28000517057 is a prime.

It is not a weakly prime, because it can be changed into another prime (28000525349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14000262624 + 14000262625.

It is an arithmetic number, because the mean of its divisors is an integer number (14000262625).

Almost surely, 2^28000525249 is an apocalyptic number.

It is an amenable number.

28000525249 is a deficient number, since it is larger than the sum of its proper divisors (1).

28000525249 is an equidigital number, since it uses as much as digits as its factorization.

28000525249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 28000525249 in words is "twenty-eight billion, five hundred twenty-five thousand, two hundred forty-nine".