25897056 has 24 divisors (see below), whose sum is σ = 67980024. Its totient is φ = 8632320.

The previous prime is 25897013. The next prime is 25897061. The reversal of 25897056 is 65079852.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 25896999 and 25897017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134785 + ... + 134976.

It is an arithmetic number, because the mean of its divisors is an integer number (2832501).

Almost surely, 2^25897056 is an apocalyptic number.

It is an amenable number.

25897056 is an abundant number, since it is smaller than the sum of its proper divisors (42082968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25897056 is a wasteful number, since it uses less digits than its factorization.

25897056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269774 (or 269766 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 25897056 is about 5088.9150120630. The cubic root of 25897056 is about 295.8581009659.

The spelling of 25897056 in words is "twenty-five million, eight hundred ninety-seven thousand, fifty-six".