25490033 has 2 divisors, whose sum is σ = 25490034. Its totient is φ = 25490032.

The previous prime is 25489999. The next prime is 25490041. The reversal of 25490033 is 33009452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24433249 + 1056784 = 4943^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 25490033 - 2⁶ = 25489969 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25489984 and 25490011.

It is not a weakly prime, because it can be changed into another prime (25490053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12745016 + 12745017.

It is an arithmetic number, because the mean of its divisors is an integer number (12745017).

Almost surely, 2^25490033 is an apocalyptic number.

It is an amenable number.

25490033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25490033 is an equidigital number, since it uses as much as digits as its factorization.

25490033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25490033 is about 5048.7654926724. The cubic root of 25490033 is about 294.2999122259.

Adding to 25490033 its reverse (33009452), we get a palindrome (58499485).

The spelling of 25490033 in words is "twenty-five million, four hundred ninety thousand, thirty-three".