25435242011 has 2 divisors, whose sum is σ = 25435242012. Its totient is φ = 25435242010.

The previous prime is 25435241999. The next prime is 25435242097. The reversal of 25435242011 is 11024253452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25435242011 - 2⁶ = 25435241947 is a prime.

It is not a weakly prime, because it can be changed into another prime (25435241011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717621005 + 12717621006.

It is an arithmetic number, because the mean of its divisors is an integer number (12717621006).

Almost surely, 2^25435242011 is an apocalyptic number.

25435242011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25435242011 is an equidigital number, since it uses as much as digits as its factorization.

25435242011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 25435242011 its reverse (11024253452), we get a palindrome (36459495463).

The spelling of 25435242011 in words is "twenty-five billion, four hundred thirty-five million, two hundred forty-two thousand, eleven".