25422500631220 has 192 divisors, whose sum is σ = 66804082974720. Its totient is φ = 7894948262400.

The previous prime is 25422500631211. The next prime is 25422500631313. The reversal of 25422500631220 is 2213600522452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1224639201 + ... + 1224659959.

It is an arithmetic number, because the mean of its divisors is an integer number (347937932160).

Almost surely, 2^{25422500631220} is an apocalyptic number.

25422500631220 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 25422500631220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33402041487360).

25422500631220 is an abundant number, since it is smaller than the sum of its proper divisors (41381582343500).

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

25422500631220 is a wasteful number, since it uses less digits than its factorization.

25422500631220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23654 (or 23652 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 25422500631220 in words is "twenty-five trillion, four hundred twenty-two billion, five hundred million, six hundred thirty-one thousand, two hundred twenty".