25425235243 has 2 divisors, whose sum is σ = 25425235244. Its totient is φ = 25425235242.

The previous prime is 25425235237. The next prime is 25425235307. The reversal of 25425235243 is 34253252452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25425235243 - 2⁵ = 25425235211 is a prime.

It is not a weakly prime, because it can be changed into another prime (25425235223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712617621 + 12712617622.

It is an arithmetic number, because the mean of its divisors is an integer number (12712617622).

Almost surely, 2^25425235243 is an apocalyptic number.

25425235243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25425235243 is an equidigital number, since it uses as much as digits as its factorization.

25425235243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 37.

Adding to 25425235243 its reverse (34253252452), we get a palindrome (59678487695).

The spelling of 25425235243 in words is "twenty-five billion, four hundred twenty-five million, two hundred thirty-five thousand, two hundred forty-three".