25897361 has 8 divisors (see below), whose sum is σ = 31154880. Its totient is φ = 21029328.

The previous prime is 25897357. The next prime is 25897387. The reversal of 25897361 is 16379852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25897361 - 2² = 25897357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25897301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97226 + ... + 97491.

It is an arithmetic number, because the mean of its divisors is an integer number (3894360).

Almost surely, 2^25897361 is an apocalyptic number.

It is an amenable number.

25897361 is a deficient number, since it is larger than the sum of its proper divisors (5257519).

25897361 is a wasteful number, since it uses less digits than its factorization.

25897361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194743.

The product of its digits is 90720, while the sum is 41.

The square root of 25897361 is about 5088.9449790698. The cubic root of 25897361 is about 295.8592624411.

The spelling of 25897361 in words is "twenty-five million, eight hundred ninety-seven thousand, three hundred sixty-one".