25974528 has 72 divisors (see below), whose sum is σ = 71425536. Its totient is φ = 8371200.

The previous prime is 25974527. The next prime is 25974583. The reversal of 25974528 is 82547952.

It is a super-2 number, since 2×25974528² = 1349352209645568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25974528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25974527) 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, 23263 + ... + 24353.

Almost surely, 2^25974528 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 25974528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35712768).

25974528 is an abundant number, since it is smaller than the sum of its proper divisors (45451008).

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

25974528 is a wasteful number, since it uses less digits than its factorization.

25974528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1127 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 25974528 is about 5096.5211664429. The cubic root of 25974528 is about 296.1528307433.

The spelling of 25974528 in words is "twenty-five million, nine hundred seventy-four thousand, five hundred twenty-eight".