25303252397 has 2 divisors, whose sum is σ = 25303252398. Its totient is φ = 25303252396.

The previous prime is 25303252379. The next prime is 25303252409. The reversal of 25303252397 is 79325230352.

It is a happy number.

Together with previous prime (25303252379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19035996841 + 6267255556 = 137971^2 + 79166^2 .

It is a cyclic number.

It is not a de Polignac number, because 25303252397 - 2²⁰ = 25302203821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25303222397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12651626198 + 12651626199.

It is an arithmetic number, because the mean of its divisors is an integer number (12651626199).

Almost surely, 2^25303252397 is an apocalyptic number.

It is an amenable number.

25303252397 is a deficient number, since it is larger than the sum of its proper divisors (1).

25303252397 is an equidigital number, since it uses as much as digits as its factorization.

25303252397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 41.

The spelling of 25303252397 in words is "twenty-five billion, three hundred three million, two hundred fifty-two thousand, three hundred ninety-seven".