25011103217 has 2 divisors, whose sum is σ = 25011103218. Its totient is φ = 25011103216.

The previous prime is 25011103193. The next prime is 25011103259. The reversal of 25011103217 is 71230111052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22649046016 + 2362057201 = 150496^2 + 48601^2 .

It is a cyclic number.

It is not a de Polignac number, because 25011103217 - 2⁶ = 25011103153 is a prime.

It is a super-3 number, since 3×25011103217³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25011103192 and 25011103201.

It is not a weakly prime, because it can be changed into another prime (25011106217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12505551608 + 12505551609.

It is an arithmetic number, because the mean of its divisors is an integer number (12505551609).

Almost surely, 2^25011103217 is an apocalyptic number.

It is an amenable number.

25011103217 is a deficient number, since it is larger than the sum of its proper divisors (1).

25011103217 is an equidigital number, since it uses as much as digits as its factorization.

25011103217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

Adding to 25011103217 its reverse (71230111052), we get a palindrome (96241214269).

The spelling of 25011103217 in words is "twenty-five billion, eleven million, one hundred three thousand, two hundred seventeen".