28525349 has 2 divisors, whose sum is σ = 28525350. Its totient is φ = 28525348.

The previous prime is 28525333. The next prime is 28525351. The reversal of 28525349 is 94352582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24453025 + 4072324 = 4945^2 + 2018^2 .

It is a cyclic number.

It is not a de Polignac number, because 28525349 - 2⁴ = 28525333 is a prime.

Together with 28525351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28525309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14262674 + 14262675.

It is an arithmetic number, because the mean of its divisors is an integer number (14262675).

Almost surely, 2^28525349 is an apocalyptic number.

It is an amenable number.

28525349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28525349 is an equidigital number, since it uses as much as digits as its factorization.

28525349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 28525349 is about 5340.9127497086. The cubic root of 28525349 is about 305.5462717522.

The spelling of 28525349 in words is "twenty-eight million, five hundred twenty-five thousand, three hundred forty-nine".