25971064 has 32 divisors (see below), whose sum is σ = 56423520. Its totient is φ = 10976256.

The previous prime is 25971061. The next prime is 25971067. The reversal of 25971064 is 46017952.

It is an interprime number because it is at equal distance from previous prime (25971061) and next prime (25971067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25971061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912 + ... + 7264.

It is an arithmetic number, because the mean of its divisors is an integer number (1763235).

Almost surely, 2^25971064 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 25971064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28211760).

25971064 is an abundant number, since it is smaller than the sum of its proper divisors (30452456).

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

25971064 is a wasteful number, since it uses less digits than its factorization.

25971064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 25971064 is about 5096.1813154557. The cubic root of 25971064 is about 296.1396650371.

The spelling of 25971064 in words is "twenty-five million, nine hundred seventy-one thousand, sixty-four".