25252416 has 84 divisors (see below), whose sum is σ = 82734912. Its totient is φ = 7213824.

The previous prime is 25252363. The next prime is 25252439. The reversal of 25252416 is 61425252.

It is a tau number, because it is divible by the number of its divisors (84).

It is a self number, because there is not a number n which added to its sum of digits gives 25252416.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 901 + ... + 7163.

Almost surely, 2^25252416 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 25252416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41367456).

25252416 is an abundant number, since it is smaller than the sum of its proper divisors (57482496).

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

25252416 is a wasteful number, since it uses less digits than its factorization.

25252416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6275 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 25252416 is about 5025.1782057953. The cubic root of 25252416 is about 293.3825720833.

Adding to 25252416 its reverse (61425252), we get a palindrome (86677668).

The spelling of 25252416 in words is "twenty-five million, two hundred fifty-two thousand, four hundred sixteen".