25117883488905 has 32 divisors (see below), whose sum is σ = 40873136716800. Its totient is φ = 13168067485632.

The previous prime is 25117883488891. The next prime is 25117883488909. The reversal of 25117883488905 is 50988438871152.

It is not a de Polignac number, because 25117883488905 - 2⁹ = 25117883488393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25117883488905.

It is not an unprimeable number, because it can be changed into a prime (25117883488909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9660276 + ... + 11981514.

It is an arithmetic number, because the mean of its divisors is an integer number (1277285522400).

Almost surely, 2^{25117883488905} is an apocalyptic number.

It is an amenable number.

25117883488905 is a deficient number, since it is larger than the sum of its proper divisors (15755253227895).

25117883488905 is a wasteful number, since it uses less digits than its factorization.

25117883488905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333533.

The product of its (nonzero) digits is 154828800, while the sum is 69.

The spelling of 25117883488905 in words is "twenty-five trillion, one hundred seventeen billion, eight hundred eighty-three million, four hundred eighty-eight thousand, nine hundred five".