25416216 has 96 divisors (see below), whose sum is σ = 79372800. Its totient is φ = 7197120.

The previous prime is 25416211. The next prime is 25416233. The reversal of 25416216 is 61261452.

It is a self number, because there is not a number n which added to its sum of digits gives 25416216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25416211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106225 + ... + 106463.

It is an arithmetic number, because the mean of its divisors is an integer number (826800).

Almost surely, 2^25416216 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 25416216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39686400).

25416216 is an abundant number, since it is smaller than the sum of its proper divisors (53956584).

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

25416216 is a wasteful number, since it uses less digits than its factorization.

25416216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 462 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 25416216 is about 5041.4497914786. The cubic root of 25416216 is about 294.0155482545.

Adding to 25416216 its reverse (61261452), we get a palindrome (86677668).

The spelling of 25416216 in words is "twenty-five million, four hundred sixteen thousand, two hundred sixteen".