25261297 has 2 divisors, whose sum is σ = 25261298. Its totient is φ = 25261296.

The previous prime is 25261283. The next prime is 25261319. The reversal of 25261297 is 79216252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14561856 + 10699441 = 3816^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 25261297 - 2¹¹ = 25259249 is a prime.

It is a super-2 number, since 2×25261297² = 1276266252244418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25261267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630648 + 12630649.

It is an arithmetic number, because the mean of its divisors is an integer number (12630649).

Almost surely, 2^25261297 is an apocalyptic number.

It is an amenable number.

25261297 is a deficient number, since it is larger than the sum of its proper divisors (1).

25261297 is an equidigital number, since it uses as much as digits as its factorization.

25261297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 25261297 is about 5026.0617783708. The cubic root of 25261297 is about 293.4169612052.

The spelling of 25261297 in words is "twenty-five million, two hundred sixty-one thousand, two hundred ninety-seven".