25865760 has 48 divisors (see below), whose sum is σ = 81478656. Its totient is φ = 6897408.

The previous prime is 25865759. The next prime is 25865771. The reversal of 25865760 is 6756852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26464 + ... + 27423.

It is an arithmetic number, because the mean of its divisors is an integer number (1697472).

Almost surely, 2^25865760 is an apocalyptic number.

25865760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25865760 is an abundant number, since it is smaller than the sum of its proper divisors (55612896).

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

25865760 is a wasteful number, since it uses less digits than its factorization.

25865760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53905 (or 53897 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 25865760 is about 5085.8391637959. The cubic root of 25865760 is about 295.7388736752.

The spelling of 25865760 in words is "twenty-five million, eight hundred sixty-five thousand, seven hundred sixty".