25424242544120 has 128 divisors (see below), whose sum is σ = 65515652928000. Its totient is φ = 8698353163776.

The previous prime is 25424242544117. The next prime is 25424242544159. The reversal of 25424242544120 is 2144524242452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802036031 + ... + 802067729.

It is an arithmetic number, because the mean of its divisors is an integer number (511841038500).

Almost surely, 2^{25424242544120} is an apocalyptic number.

25424242544120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25424242544120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32757826464000).

25424242544120 is an abundant number, since it is smaller than the sum of its proper divisors (40091410383880).

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

25424242544120 is a wasteful number, since it uses less digits than its factorization.

25424242544120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37717 (or 37713 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 41.

Adding to 25424242544120 its reverse (2144524242452), we get a palindrome (27568766786572).

The spelling of 25424242544120 in words is "twenty-five trillion, four hundred twenty-four billion, two hundred forty-two million, five hundred forty-four thousand, one hundred twenty".