25265197 has 2 divisors, whose sum is σ = 25265198. Its totient is φ = 25265196.

The previous prime is 25265189. The next prime is 25265203. The reversal of 25265197 is 79156252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25210441 + 54756 = 5021^2 + 234^2 .

It is a cyclic number.

It is not a de Polignac number, because 25265197 - 2³ = 25265189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25265147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632598 + 12632599.

It is an arithmetic number, because the mean of its divisors is an integer number (12632599).

Almost surely, 2^25265197 is an apocalyptic number.

It is an amenable number.

25265197 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265197 is an equidigital number, since it uses as much as digits as its factorization.

25265197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 25265197 is about 5026.4497411195. The cubic root of 25265197 is about 293.4320602883.

The spelling of 25265197 in words is "twenty-five million, two hundred sixty-five thousand, one hundred ninety-seven".