25343616 has 64 divisors (see below), whose sum is σ = 69523200. Its totient is φ = 8171520.

The previous prime is 25343611. The next prime is 25343693. The reversal of 25343616 is 61634352.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25343611) 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, 10840 + ... + 12968.

It is an arithmetic number, because the mean of its divisors is an integer number (1086300).

Almost surely, 2^25343616 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 25343616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34761600).

25343616 is an abundant number, since it is smaller than the sum of its proper divisors (44179584).

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

25343616 is a wasteful number, since it uses less digits than its factorization.

25343616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2165 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 25343616 is about 5034.2443325687. The cubic root of 25343616 is about 293.7353349552.

Adding to 25343616 its reverse (61634352), we get a palindrome (86977968).

The spelling of 25343616 in words is "twenty-five million, three hundred forty-three thousand, six hundred sixteen".