25112741152640 has 256 divisors, whose sum is σ = 63406715328000. Its totient is φ = 9484559474688.

The previous prime is 25112741152637. The next prime is 25112741152657. The reversal of 25112741152640 is 4625114721152.

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, 6603400979 + ... + 6603404781.

It is an arithmetic number, because the mean of its divisors is an integer number (247682481750).

Almost surely, 2^{25112741152640} is an apocalyptic number.

25112741152640 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 25112741152640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31703357664000).

25112741152640 is an abundant number, since it is smaller than the sum of its proper divisors (38293974175360).

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

25112741152640 is a wasteful number, since it uses less digits than its factorization.

25112741152640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

Adding to 25112741152640 its reverse (4625114721152), we get a palindrome (29737855873792).

The spelling of 25112741152640 in words is "twenty-five trillion, one hundred twelve billion, seven hundred forty-one million, one hundred fifty-two thousand, six hundred forty".