25465897 has 2 divisors, whose sum is σ = 25465898. Its totient is φ = 25465896.

The previous prime is 25465889. The next prime is 25465901. The reversal of 25465897 is 79856452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22382361 + 3083536 = 4731^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 25465897 - 2³ = 25465889 is a prime.

It is not a weakly prime, because it can be changed into another prime (25465877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12732948 + 12732949.

It is an arithmetic number, because the mean of its divisors is an integer number (12732949).

Almost surely, 2^25465897 is an apocalyptic number.

It is an amenable number.

25465897 is a deficient number, since it is larger than the sum of its proper divisors (1).

25465897 is an equidigital number, since it uses as much as digits as its factorization.

25465897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 25465897 is about 5046.3746392831. The cubic root of 25465897 is about 294.2069940014.

It can be divided in two parts, 25465 and 897, that added together give a palindrome (26362).

The spelling of 25465897 in words is "twenty-five million, four hundred sixty-five thousand, eight hundred ninety-seven".