25280033 has 2 divisors, whose sum is σ = 25280034. Its totient is φ = 25280032.

The previous prime is 25280009. The next prime is 25280039. The reversal of 25280033 is 33008252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16589329 + 8690704 = 4073^2 + 2948^2 .

It is a cyclic number.

It is not a de Polignac number, because 25280033 - 2⁸ = 25279777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25279990 and 25280008.

It is not a weakly prime, because it can be changed into another prime (25280039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12640016 + 12640017.

It is an arithmetic number, because the mean of its divisors is an integer number (12640017).

Almost surely, 2^25280033 is an apocalyptic number.

It is an amenable number.

25280033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280033 is an equidigital number, since it uses as much as digits as its factorization.

25280033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 25280033 is about 5027.9253176633. The cubic root of 25280033 is about 293.4894845547.

Adding to 25280033 its reverse (33008252), we get a palindrome (58288285).

The spelling of 25280033 in words is "twenty-five million, two hundred eighty thousand, thirty-three".