25694816 has 48 divisors (see below), whose sum is σ = 59018400. Its totient is φ = 11007360.

The previous prime is 25694791. The next prime is 25694819. The reversal of 25694816 is 61849652.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25694819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9806 + ... + 12146.

It is an arithmetic number, because the mean of its divisors is an integer number (1229550).

Almost surely, 2^25694816 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 25694816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29509200).

25694816 is an abundant number, since it is smaller than the sum of its proper divisors (33323584).

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

25694816 is an equidigital number, since it uses as much as digits as its factorization.

25694816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372 (or 2350 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 25694816 is about 5069.0054251303. The cubic root of 25694816 is about 295.0859311094.

The spelling of 25694816 in words is "twenty-five million, six hundred ninety-four thousand, eight hundred sixteen".