25222204193 has 2 divisors, whose sum is σ = 25222204194. Its totient is φ = 25222204192.

The previous prime is 25222204169. The next prime is 25222204237. The reversal of 25222204193 is 39140222252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13045523089 + 12176681104 = 114217^2 + 110348^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222204193 - 2¹⁰ = 25222203169 is a prime.

It is a super-6 number, since 6×25222204193⁶ (a number of 64 digits) contains 666666 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25222204123) 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, 12611102096 + 12611102097.

It is an arithmetic number, because the mean of its divisors is an integer number (12611102097).

Almost surely, 2^25222204193 is an apocalyptic number.

It is an amenable number.

25222204193 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222204193 is an equidigital number, since it uses as much as digits as its factorization.

25222204193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 25222204193 its sum of digits (32), we get a square (25222204225 = 158815²).

The spelling of 25222204193 in words is "twenty-five billion, two hundred twenty-two million, two hundred four thousand, one hundred ninety-three".