25839072 has 108 divisors (see below), whose sum is σ = 85523256. Its totient is φ = 7378560.

The previous prime is 25839067. The next prime is 25839091. The reversal of 25839072 is 27093852.

It is a happy number.

25839072 is a `hidden beast` number, since 2 + 583 + 9 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13197 + ... + 15027.

It is an arithmetic number, because the mean of its divisors is an integer number (791882).

Almost surely, 2^25839072 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 25839072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42761628).

25839072 is an abundant number, since it is smaller than the sum of its proper divisors (59684184).

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

25839072 is a wasteful number, since it uses less digits than its factorization.

25839072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 25839072 is about 5083.2147308568. The cubic root of 25839072 is about 295.6371253260.

The spelling of 25839072 in words is "twenty-five million, eight hundred thirty-nine thousand, seventy-two".