25972544 has 112 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 10782720.

The previous prime is 25972523. The next prime is 25972547. The reversal of 25972544 is 44527952.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 25972498 and 25972507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25972547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490022 + ... + 490074.

It is an arithmetic number, because the mean of its divisors is an integer number (548640).

Almost surely, 2^25972544 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 25972544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30723840).

25972544 is an abundant number, since it is smaller than the sum of its proper divisors (35475136).

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

25972544 is a wasteful number, since it uses less digits than its factorization.

25972544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 118 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 25972544 is about 5096.3265201515. The cubic root of 25972544 is about 296.1452902511.

The spelling of 25972544 in words is "twenty-five million, nine hundred seventy-two thousand, five hundred forty-four".