25304197 has 2 divisors, whose sum is σ = 25304198. Its totient is φ = 25304196.

The previous prime is 25304183. The next prime is 25304221. The reversal of 25304197 is 79140352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20349121 + 4955076 = 4511^2 + 2226^2 .

It is a cyclic number.

It is not a de Polignac number, because 25304197 - 2¹¹ = 25302149 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 (25304107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652098 + 12652099.

It is an arithmetic number, because the mean of its divisors is an integer number (12652099).

Almost surely, 2^25304197 is an apocalyptic number.

It is an amenable number.

25304197 is a deficient number, since it is larger than the sum of its proper divisors (1).

25304197 is an equidigital number, since it uses as much as digits as its factorization.

25304197 is an odious number, because the sum of its binary digits is odd.

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

The square root of 25304197 is about 5030.3277229222. The cubic root of 25304197 is about 293.5829657289.

The spelling of 25304197 in words is "twenty-five million, three hundred four thousand, one hundred ninety-seven".