25961012 has 48 divisors (see below), whose sum is σ = 58490880. Its totient is φ = 9784800.

The previous prime is 25960969. The next prime is 25961027. The reversal of 25961012 is 21016952.

25961012 is nontrivially palindromic in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8189 + ... + 10907.

It is an arithmetic number, because the mean of its divisors is an integer number (1218560).

Almost surely, 2^25961012 is an apocalyptic number.

25961012 is a gapful number since it is divisible by the number (22) 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 25961012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29245440).

25961012 is an abundant number, since it is smaller than the sum of its proper divisors (32529868).

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

25961012 is a wasteful number, since it uses less digits than its factorization.

25961012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 25961012 is about 5095.1949913620. The cubic root of 25961012 is about 296.1014535356.

Adding to 25961012 its reverse (21016952), we get a palindrome (46977964).

The spelling of 25961012 in words is "twenty-five million, nine hundred sixty-one thousand, twelve".