25312297 has 2 divisors, whose sum is σ = 25312298. Its totient is φ = 25312296.

The previous prime is 25312289. The next prime is 25312327. The reversal of 25312297 is 79221352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12787776 + 12524521 = 3576^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 25312297 - 2³ = 25312289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25312207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12656148 + 12656149.

It is an arithmetic number, because the mean of its divisors is an integer number (12656149).

Almost surely, 2^25312297 is an apocalyptic number.

It is an amenable number.

25312297 is a deficient number, since it is larger than the sum of its proper divisors (1).

25312297 is an equidigital number, since it uses as much as digits as its factorization.

25312297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 25312297 is about 5031.1327750319. The cubic root of 25312297 is about 293.6142881788.

The spelling of 25312297 in words is "twenty-five million, three hundred twelve thousand, two hundred ninety-seven".