25122404011 has 2 divisors, whose sum is σ = 25122404012. Its totient is φ = 25122404010.

The previous prime is 25122404003. The next prime is 25122404023. The reversal of 25122404011 is 11040422152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25122404011 - 2³ = 25122404003 is a prime.

It is a super-2 number, since 2×25122404011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25122408011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561202005 + 12561202006.

It is an arithmetic number, because the mean of its divisors is an integer number (12561202006).

Almost surely, 2^25122404011 is an apocalyptic number.

25122404011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25122404011 is an equidigital number, since it uses as much as digits as its factorization.

25122404011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 25122404011 its reverse (11040422152), we get a palindrome (36162826163).

The spelling of 25122404011 in words is "twenty-five billion, one hundred twenty-two million, four hundred four thousand, eleven".