25956660 has 48 divisors (see below), whose sum is σ = 76507200. Its totient is φ = 6557184.

The previous prime is 25956629. The next prime is 25956661. The reversal of 25956660 is 6665952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25956661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10245 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 2^25956660 is an apocalyptic number.

25956660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25956660 is an abundant number, since it is smaller than the sum of its proper divisors (50550540).

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

25956660 is a wasteful number, since it uses less digits than its factorization.

25956660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22800 (or 22798 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 25956660 is about 5094.7679044290. The cubic root of 25956660 is about 296.0849068574.

The spelling of 25956660 in words is "twenty-five million, nine hundred fifty-six thousand, six hundred sixty".