25816960 has 128 divisors (see below), whose sum is σ = 69400800. Its totient is φ = 9117696.

The previous prime is 25816951. The next prime is 25816979. The reversal of 25816960 is 6961852.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241227 + ... + 241333.

Almost surely, 2^25816960 is an apocalyptic number.

25816960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25816960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34700400).

25816960 is an abundant number, since it is smaller than the sum of its proper divisors (43583840).

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

25816960 is a wasteful number, since it uses less digits than its factorization.

25816960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 25816960 is about 5081.0392637727. The cubic root of 25816960 is about 295.5527699522.

The spelling of 25816960 in words is "twenty-five million, eight hundred sixteen thousand, nine hundred sixty".