25103535213193 has 2 divisors, whose sum is σ = 25103535213194. Its totient is φ = 25103535213192.

The previous prime is 25103535213187. The next prime is 25103535213217. The reversal of 25103535213193 is 39131253530152.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14276329230409 + 10827205982784 = 3778403^2 + 3290472^2 .

It is a cyclic number.

It is not a de Polignac number, because 25103535213193 - 2⁵ = 25103535213161 is a prime.

It is a super-2 number, since 2×25103535213193² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25103535213103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12551767606596 + 12551767606597.

It is an arithmetic number, because the mean of its divisors is an integer number (12551767606597).

Almost surely, 2^{25103535213193} is an apocalyptic number.

It is an amenable number.

25103535213193 is a deficient number, since it is larger than the sum of its proper divisors (1).

25103535213193 is an equidigital number, since it uses as much as digits as its factorization.

25103535213193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 43.

The spelling of 25103535213193 in words is "twenty-five trillion, one hundred three billion, five hundred thirty-five million, two hundred thirteen thousand, one hundred ninety-three".