25224331117 has 2 divisors, whose sum is σ = 25224331118. Its totient is φ = 25224331116.

The previous prime is 25224331103. The next prime is 25224331141. The reversal of 25224331117 is 71113342252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22016921161 + 3207409956 = 148381^2 + 56634^2 .

It is a cyclic number.

It is not a de Polignac number, because 25224331117 - 2¹¹ = 25224329069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25224331217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12612165558 + 12612165559.

It is an arithmetic number, because the mean of its divisors is an integer number (12612165559).

Almost surely, 2^25224331117 is an apocalyptic number.

It is an amenable number.

25224331117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25224331117 is an equidigital number, since it uses as much as digits as its factorization.

25224331117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

Adding to 25224331117 its reverse (71113342252), we get a palindrome (96337673369).

The spelling of 25224331117 in words is "twenty-five billion, two hundred twenty-four million, three hundred thirty-one thousand, one hundred seventeen".