25985024 has 64 divisors (see below), whose sum is σ = 56884380. Its totient is φ = 11796480.

The previous prime is 25985023. The next prime is 25985041. The reversal of 25985024 is 42058952.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20070400 + 5914624 = 4480^2 + 2432^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25985023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425954 + ... + 426014.

Almost surely, 2^25985024 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 25985024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28442190).

25985024 is an abundant number, since it is smaller than the sum of its proper divisors (30899356).

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

25985024 is an frugal number, since it uses more digits than its factorization.

25985024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 25985024 is about 5097.5507844454. The cubic root of 25985024 is about 296.1927159918.

The spelling of 25985024 in words is "twenty-five million, nine hundred eighty-five thousand, twenty-four".