25131373850240 has 256 divisors, whose sum is σ = 72385472102400. Its totient is φ = 8161102909440.

The previous prime is 25131373850183. The next prime is 25131373850267. The reversal of 25131373850240 is 4205837313152.

It is a junction number, because it is equal to n+sod(n) for n = 25131373850191 and 25131373850200.

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 31 ways as a sum of consecutive naturals, for example, 4602281 + ... + 8452439.

It is an arithmetic number, because the mean of its divisors is an integer number (282755750400).

Almost surely, 2^{25131373850240} is an apocalyptic number.

25131373850240 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 25131373850240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36192736051200).

25131373850240 is an abundant number, since it is smaller than the sum of its proper divisors (47254098252160).

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

25131373850240 is a wasteful number, since it uses less digits than its factorization.

25131373850240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850263 (or 3850251 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 25131373850240 in words is "twenty-five trillion, one hundred thirty-one billion, three hundred seventy-three million, eight hundred fifty thousand, two hundred forty".