25895839 has 4 divisors (see below), whose sum is σ = 26082280. Its totient is φ = 25709400.

The previous prime is 25895813. The next prime is 25895843. The reversal of 25895839 is 93859852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25895839 - 2⁷ = 25895711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25895792 and 25895801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25895809) 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, 93012 + ... + 93289.

It is an arithmetic number, because the mean of its divisors is an integer number (6520570).

Almost surely, 2^25895839 is an apocalyptic number.

25895839 is a deficient number, since it is larger than the sum of its proper divisors (186441).

25895839 is a wasteful number, since it uses less digits than its factorization.

25895839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186440.

The product of its digits is 777600, while the sum is 49.

The square root of 25895839 is about 5088.7954370362. The cubic root of 25895839 is about 295.8534663985.

The spelling of 25895839 in words is "twenty-five million, eight hundred ninety-five thousand, eight hundred thirty-nine".