25484816 has 40 divisors (see below), whose sum is σ = 56871360. Its totient is φ = 10836864.

The previous prime is 25484813. The next prime is 25484827. The reversal of 25484816 is 61848452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25484816.

It is not an unprimeable number, because it can be changed into a prime (25484813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14750 + ... + 16386.

It is an arithmetic number, because the mean of its divisors is an integer number (1421784).

Almost surely, 2^25484816 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 25484816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28435680).

25484816 is an abundant number, since it is smaller than the sum of its proper divisors (31386544).

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

25484816 is a wasteful number, since it uses less digits than its factorization.

25484816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1785 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 25484816 is about 5048.2488052789. The cubic root of 25484816 is about 294.2798329083.

The spelling of 25484816 in words is "twenty-five million, four hundred eighty-four thousand, eight hundred sixteen".