25442416 has 40 divisors (see below), whose sum is σ = 52568064. Its totient is φ = 11901120.

The previous prime is 25442411. The next prime is 25442419. The reversal of 25442416 is 61424452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442411) 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, 16561 + ... + 18031.

Almost surely, 2^25442416 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 25442416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26284032).

25442416 is an abundant number, since it is smaller than the sum of its proper divisors (27125648).

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

25442416 is a wasteful number, since it uses less digits than its factorization.

25442416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1543 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 25442416 is about 5044.0475810603. The cubic root of 25442416 is about 294.1165410217.

Adding to 25442416 its reverse (61424452), we get a palindrome (86866868).

The spelling of 25442416 in words is "twenty-five million, four hundred forty-two thousand, four hundred sixteen".