28525933 has 2 divisors, whose sum is σ = 28525934. Its totient is φ = 28525932.

The previous prime is 28525909. The next prime is 28525951. The reversal of 28525933 is 33952582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16540489 + 11985444 = 4067^2 + 3462^2 .

It is a cyclic number.

It is not a de Polignac number, because 28525933 - 2⁹ = 28525421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28525892 and 28525901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28525993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14262966 + 14262967.

It is an arithmetic number, because the mean of its divisors is an integer number (14262967).

Almost surely, 2^28525933 is an apocalyptic number.

It is an amenable number.

28525933 is a deficient number, since it is larger than the sum of its proper divisors (1).

28525933 is an equidigital number, since it uses as much as digits as its factorization.

28525933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 28525933 is about 5340.9674217318. The cubic root of 28525933 is about 305.5483568895.

The spelling of 28525933 in words is "twenty-eight million, five hundred twenty-five thousand, nine hundred thirty-three".