25861459 has 8 divisors (see below), whose sum is σ = 27906480. Its totient is φ = 23824416.

The previous prime is 25861441. The next prime is 25861477. The reversal of 25861459 is 95416852.

It is an interprime number because it is at equal distance from previous prime (25861441) and next prime (25861477).

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 25861459 - 2⁵ = 25861427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25861439) 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 in 7 ways as a sum of consecutive naturals, for example, 5937 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (3488310).

Almost surely, 2^25861459 is an apocalyptic number.

25861459 is a deficient number, since it is larger than the sum of its proper divisors (2045021).

25861459 is a wasteful number, since it uses less digits than its factorization.

25861459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989.

The product of its digits is 86400, while the sum is 40.

The square root of 25861459 is about 5085.4163054759. The cubic root of 25861459 is about 295.7224807887.

The spelling of 25861459 in words is "twenty-five million, eight hundred sixty-one thousand, four hundred fifty-nine".