28525361 has 2 divisors, whose sum is σ = 28525362. Its totient is φ = 28525360.

The previous prime is 28525351. The next prime is 28525373. The reversal of 28525361 is 16352582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15880225 + 12645136 = 3985^2 + 3556^2 .

It is a cyclic number.

It is not a de Polignac number, because 28525361 - 2¹⁸ = 28263217 is a prime.

It is not a weakly prime, because it can be changed into another prime (28525331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14262680 + 14262681.

It is an arithmetic number, because the mean of its divisors is an integer number (14262681).

Almost surely, 2^28525361 is an apocalyptic number.

It is an amenable number.

28525361 is a deficient number, since it is larger than the sum of its proper divisors (1).

28525361 is an equidigital number, since it uses as much as digits as its factorization.

28525361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 28525361 is about 5340.9138731120. The cubic root of 28525361 is about 305.5463145978.

The spelling of 28525361 in words is "twenty-eight million, five hundred twenty-five thousand, three hundred sixty-one".