25982597 has 4 divisors (see below), whose sum is σ = 26423040. Its totient is φ = 25542156.

The previous prime is 25982591. The next prime is 25982599. The reversal of 25982597 is 79528952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25982597 - 2⁴ = 25982581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25982591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220133 + ... + 220250.

It is an arithmetic number, because the mean of its divisors is an integer number (6605760).

Almost surely, 2^25982597 is an apocalyptic number.

It is an amenable number.

25982597 is a deficient number, since it is larger than the sum of its proper divisors (440443).

25982597 is an equidigital number, since it uses as much as digits as its factorization.

25982597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440442.

The product of its digits is 453600, while the sum is 47.

The square root of 25982597 is about 5097.3127233867. The cubic root of 25982597 is about 296.1834942428.

The spelling of 25982597 in words is "twenty-five million, nine hundred eighty-two thousand, five hundred ninety-seven".