25851760 has 80 divisors (see below), whose sum is σ = 67897440. Its totient is φ = 9067520.

The previous prime is 25851751. The next prime is 25851769. The reversal of 25851760 is 6715852.

It is an interprime number because it is at equal distance from previous prime (25851751) and next prime (25851769).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25851769) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25014 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (848718).

Almost surely, 2^25851760 is an apocalyptic number.

25851760 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 25851760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33948720).

25851760 is an abundant number, since it is smaller than the sum of its proper divisors (42045680).

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

25851760 is a wasteful number, since it uses less digits than its factorization.

25851760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 25851760 is about 5084.4626068052. The cubic root of 25851760 is about 295.6855072241.

The spelling of 25851760 in words is "twenty-five million, eight hundred fifty-one thousand, seven hundred sixty".