25328297 has 2 divisors, whose sum is σ = 25328298. Its totient is φ = 25328296.

The previous prime is 25328293. The next prime is 25328309. The reversal of 25328297 is 79282352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21864976 + 3463321 = 4676^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 25328297 - 2² = 25328293 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25328297.

It is not a weakly prime, because it can be changed into another prime (25328293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12664148 + 12664149.

It is an arithmetic number, because the mean of its divisors is an integer number (12664149).

Almost surely, 2^25328297 is an apocalyptic number.

It is an amenable number.

25328297 is a deficient number, since it is larger than the sum of its proper divisors (1).

25328297 is an equidigital number, since it uses as much as digits as its factorization.

25328297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 25328297 is about 5032.7226229944. The cubic root of 25328297 is about 293.6761400542.

The spelling of 25328297 in words is "twenty-five million, three hundred twenty-eight thousand, two hundred ninety-seven".