25971968 has 72 divisors (see below), whose sum is σ = 59161536. Its totient is φ = 11264000.

The previous prime is 25971941. The next prime is 25971973. The reversal of 25971968 is 86917952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64568 + ... + 64968.

It is an arithmetic number, because the mean of its divisors is an integer number (821688).

Almost surely, 2^25971968 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 25971968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29580768).

25971968 is an abundant number, since it is smaller than the sum of its proper divisors (33189568).

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

25971968 is a wasteful number, since it uses less digits than its factorization.

25971968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 437 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 25971968 is about 5096.2700085455. The cubic root of 25971968 is about 296.1431010040.

It can be divided in two parts, 259 and 71968, that added together give a palindrome (72227).

The spelling of 25971968 in words is "twenty-five million, nine hundred seventy-one thousand, nine hundred sixty-eight".