25256680043340 has 48 divisors (see below), whose sum is σ = 70737812742240. Its totient is φ = 6733294809600.

The previous prime is 25256680043333. The next prime is 25256680043351. The reversal of 25256680043340 is 4334008665252.

It is a super-3 number, since 3×25256680043340³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25256680043340.

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 15 ways as a sum of consecutive naturals, for example, 56646985 + ... + 57091104.

It is an arithmetic number, because the mean of its divisors is an integer number (1473704432130).

Almost surely, 2^{25256680043340} is an apocalyptic number.

25256680043340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25256680043340 is an abundant number, since it is smaller than the sum of its proper divisors (45481132698900).

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

25256680043340 is a wasteful number, since it uses less digits than its factorization.

25256680043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113741802 (or 113741800 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 25256680043340 in words is "twenty-five trillion, two hundred fifty-six billion, six hundred eighty million, forty-three thousand, three hundred forty".