25941660 has 96 divisors (see below), whose sum is σ = 79652160. Its totient is φ = 6279168.

The previous prime is 25941659. The next prime is 25941667. The reversal of 25941660 is 6614952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25941667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29142 + ... + 30018.

It is an arithmetic number, because the mean of its divisors is an integer number (829710).

Almost surely, 2^25941660 is an apocalyptic number.

25941660 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 25941660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39826080).

25941660 is an abundant number, since it is smaller than the sum of its proper divisors (53710500).

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

25941660 is a wasteful number, since it uses less digits than its factorization.

25941660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 25941660 is about 5093.2955932284. The cubic root of 25941660 is about 296.0278613901.

The spelling of 25941660 in words is "twenty-five million, nine hundred forty-one thousand, six hundred sixty".