25012843 has 2 divisors, whose sum is σ = 25012844. Its totient is φ = 25012842.

The previous prime is 25012781. The next prime is 25012847. The reversal of 25012843 is 34821052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25012843 - 2¹⁷ = 24881771 is a prime.

It is not a weakly prime, because it can be changed into another prime (25012847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12506421 + 12506422.

It is an arithmetic number, because the mean of its divisors is an integer number (12506422).

Almost surely, 2^25012843 is an apocalyptic number.

25012843 is a deficient number, since it is larger than the sum of its proper divisors (1).

25012843 is an equidigital number, since it uses as much as digits as its factorization.

25012843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 25012843 is about 5001.2841350997. The cubic root of 25012843 is about 292.4518361293.

Adding to 25012843 its reverse (34821052), we get a palindrome (59833895).

The spelling of 25012843 in words is "twenty-five million, twelve thousand, eight hundred forty-three".