25181050266240 has 192 divisors, whose sum is σ = 88224723931680. Its totient is φ = 6104496977920.

The previous prime is 25181050266157. The next prime is 25181050266271. The reversal of 25181050266240 is 4266205018152.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 25181050266192 and 25181050266201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53962434 + ... + 54427073.

Almost surely, 2^{25181050266240} is an apocalyptic number.

25181050266240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25181050266240 is an abundant number, since it is smaller than the sum of its proper divisors (63043673665440).

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

25181050266240 is a wasteful number, since it uses less digits than its factorization.

25181050266240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108389551 (or 108389528 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 25181050266240 in words is "twenty-five trillion, one hundred eighty-one billion, fifty million, two hundred sixty-six thousand, two hundred forty".