25382812 has 48 divisors (see below), whose sum is σ = 55177920. Its totient is φ = 9948672.

The previous prime is 25382809. The next prime is 25382839. The reversal of 25382812 is 21828352.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 49614 + ... + 50122.

It is an arithmetic number, because the mean of its divisors is an integer number (1149540).

Almost surely, 2^25382812 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 25382812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27588960).

25382812 is an abundant number, since it is smaller than the sum of its proper divisors (29795108).

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

25382812 is a wasteful number, since it uses less digits than its factorization.

25382812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 668 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 25382812 is about 5038.1357663326. The cubic root of 25382812 is about 293.8866856265.

The spelling of 25382812 in words is "twenty-five million, three hundred eighty-two thousand, eight hundred twelve".