25656160 has 48 divisors (see below), whose sum is σ = 62106912. Its totient is φ = 10009600.

The previous prime is 25656157. The next prime is 25656181. The reversal of 25656160 is 6165652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4605 + ... + 8515.

It is an arithmetic number, because the mean of its divisors is an integer number (1293894).

Almost surely, 2^25656160 is an apocalyptic number.

25656160 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 25656160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31053456).

25656160 is an abundant number, since it is smaller than the sum of its proper divisors (36450752).

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

25656160 is a wasteful number, since it uses less digits than its factorization.

25656160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 25656160 is about 5065.1910131801. The cubic root of 25656160 is about 294.9378783297.

The spelling of 25656160 in words is "twenty-five million, six hundred fifty-six thousand, one hundred sixty".