25404233 has 2 divisors, whose sum is σ = 25404234. Its totient is φ = 25404232.

The previous prime is 25404209. The next prime is 25404241. The reversal of 25404233 is 33240452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 284089 = 5012^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 25404233 - 2⁸ = 25403977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25404199 and 25404208.

It is not a weakly prime, because it can be changed into another prime (25404263) 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, 12702116 + 12702117.

It is an arithmetic number, because the mean of its divisors is an integer number (12702117).

Almost surely, 2^25404233 is an apocalyptic number.

It is an amenable number.

25404233 is a deficient number, since it is larger than the sum of its proper divisors (1).

25404233 is an equidigital number, since it uses as much as digits as its factorization.

25404233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 25404233 is about 5040.2612035489. The cubic root of 25404233 is about 293.9693344232.

Adding to 25404233 its reverse (33240452), we get a palindrome (58644685).

The spelling of 25404233 in words is "twenty-five million, four hundred four thousand, two hundred thirty-three".