25240043 has 2 divisors, whose sum is σ = 25240044. Its totient is φ = 25240042.

The previous prime is 25240013. The next prime is 25240049. The reversal of 25240043 is 34004252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25240043 - 2⁶ = 25239979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25239997 and 25240024.

It is not a weakly prime, because it can be changed into another prime (25240049) 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, 12620021 + 12620022.

It is an arithmetic number, because the mean of its divisors is an integer number (12620022).

Almost surely, 2^25240043 is an apocalyptic number.

25240043 is a deficient number, since it is larger than the sum of its proper divisors (1).

25240043 is an equidigital number, since it uses as much as digits as its factorization.

25240043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25240043 is about 5023.9469543378. The cubic root of 25240043 is about 293.3346477501.

Adding to 25240043 its reverse (34004252), we get a palindrome (59244295).

The spelling of 25240043 in words is "twenty-five million, two hundred forty thousand, forty-three".