25222510349 has 2 divisors, whose sum is σ = 25222510350. Its totient is φ = 25222510348.

The previous prime is 25222510331. The next prime is 25222510381. The reversal of 25222510349 is 94301522252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24197358025 + 1025152324 = 155555^2 + 32018^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222510349 - 2¹⁶ = 25222444813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25222510399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611255174 + 12611255175.

It is an arithmetic number, because the mean of its divisors is an integer number (12611255175).

Almost surely, 2^25222510349 is an apocalyptic number.

It is an amenable number.

25222510349 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222510349 is an equidigital number, since it uses as much as digits as its factorization.

25222510349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 25222510349 in words is "twenty-five billion, two hundred twenty-two million, five hundred ten thousand, three hundred forty-nine".