25123312631040 has 576 divisors, whose sum is σ = 94912340060160. Its totient is φ = 5603984179200.

The previous prime is 25123312631029. The next prime is 25123312631051. The reversal of 25123312631040 is 4013621332152.

It is an interprime number because it is at equal distance from previous prime (25123312631029) and next prime (25123312631051).

It is a junction number, because it is equal to n+sod(n) for n = 25123312630992 and 25123312631010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21239215 + ... + 22390865.

It is an arithmetic number, because the mean of its divisors is an integer number (164778368160).

Almost surely, 2^{25123312631040} is an apocalyptic number.

25123312631040 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 25123312631040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47456170030080).

25123312631040 is an abundant number, since it is smaller than the sum of its proper divisors (69789027429120).

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

25123312631040 is a wasteful number, since it uses less digits than its factorization.

25123312631040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151730 (or 1151716 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 25123312631040 its reverse (4013621332152), we get a palindrome (29136933963192).

The spelling of 25123312631040 in words is "twenty-five trillion, one hundred twenty-three billion, three hundred twelve million, six hundred thirty-one thousand, forty".