25000992 has 72 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 8151936.

The previous prime is 25000991. The next prime is 25001029. The reversal of 25000992 is 29900052.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (25000991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12613 + ... + 14459.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^25000992 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 25000992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36324288).

25000992 is an abundant number, since it is smaller than the sum of its proper divisors (47647584).

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

25000992 is a wasteful number, since it uses less digits than its factorization.

25000992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 25000992 is about 5000.0991990160. The cubic root of 25000992 is about 292.4056412709.

The spelling of 25000992 in words is "twenty-five million, nine hundred ninety-two", and thus it is an aban number.