25862144 has 112 divisors (see below), whose sum is σ = 66056256. Its totient is φ = 9830400.

The previous prime is 25862141. The next prime is 25862147. The reversal of 25862144 is 44126852.

It is an interprime number because it is at equal distance from previous prime (25862141) and next prime (25862147).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 25862144.

It is not an unprimeable number, because it can be changed into a prime (25862141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630764 + ... + 630804.

It is an arithmetic number, because the mean of its divisors is an integer number (589788).

Almost surely, 2^25862144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25862144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33028128).

25862144 is an abundant number, since it is smaller than the sum of its proper divisors (40194112).

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

25862144 is an equidigital number, since it uses as much as digits as its factorization.

25862144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 61 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 25862144 is about 5085.4836544816. The cubic root of 25862144 is about 295.7250917282.

Adding to 25862144 its reverse (44126852), we get a palindrome (69988996).

The spelling of 25862144 in words is "twenty-five million, eight hundred sixty-two thousand, one hundred forty-four".