25791072 has 96 divisors (see below), whose sum is σ = 71360352. Its totient is φ = 8146944.

The previous prime is 25791071. The next prime is 25791079. The reversal of 25791072 is 27019752.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25791071) 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, 188188 + ... + 188324.

It is an arithmetic number, because the mean of its divisors is an integer number (743337).

Almost surely, 2^25791072 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 25791072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35680176).

25791072 is an abundant number, since it is smaller than the sum of its proper divisors (45569280).

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

25791072 is a wasteful number, since it uses less digits than its factorization.

25791072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 25791072 is about 5078.4911144945. The cubic root of 25791072 is about 295.4539482348.

The spelling of 25791072 in words is "twenty-five million, seven hundred ninety-one thousand, seventy-two".