25622252542349 has 2 divisors, whose sum is σ = 25622252542350. Its totient is φ = 25622252542348.

The previous prime is 25622252542283. The next prime is 25622252542351. The reversal of 25622252542349 is 94324525222652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16261822434025 + 9360430108324 = 4032595^2 + 3059482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25622252542349 is a prime.

Together with 25622252542351, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25622252542349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25622252542849) 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, 12811126271174 + 12811126271175.

It is an arithmetic number, because the mean of its divisors is an integer number (12811126271175).

Almost surely, 2^{25622252542349} is an apocalyptic number.

It is an amenable number.

25622252542349 is a deficient number, since it is larger than the sum of its proper divisors (1).

25622252542349 is an equidigital number, since it uses as much as digits as its factorization.

25622252542349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736000, while the sum is 53.

The spelling of 25622252542349 in words is "twenty-five trillion, six hundred twenty-two billion, two hundred fifty-two million, five hundred forty-two thousand, three hundred forty-nine".