25487597 has 2 divisors, whose sum is σ = 25487598. Its totient is φ = 25487596.

The previous prime is 25487591. The next prime is 25487599. The reversal of 25487597 is 79578452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 5470921 = 4474^2 + 2339^2 .

It is a cyclic number.

It is not a de Polignac number, because 25487597 - 2¹² = 25483501 is a prime.

Together with 25487599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25487591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12743798 + 12743799.

It is an arithmetic number, because the mean of its divisors is an integer number (12743799).

Almost surely, 2^25487597 is an apocalyptic number.

It is an amenable number.

25487597 is a deficient number, since it is larger than the sum of its proper divisors (1).

25487597 is an equidigital number, since it uses as much as digits as its factorization.

25487597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 25487597 is about 5048.5242398150. The cubic root of 25487597 is about 294.2905368303.

The spelling of 25487597 in words is "twenty-five million, four hundred eighty-seven thousand, five hundred ninety-seven".