25600463513426 has 4 divisors (see below), whose sum is σ = 38400695270142. Its totient is φ = 12800231756712.

The previous prime is 25600463513377. The next prime is 25600463513431. The reversal of 25600463513426 is 62431536400652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19288566015625 + 6311897497801 = 4391875^2 + 2512349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400115878355 + ... + 6400115878358.

Almost surely, 2^{25600463513426} is an apocalyptic number.

25600463513426 is a deficient number, since it is larger than the sum of its proper divisors (12800231756716).

25600463513426 is a wasteful number, since it uses less digits than its factorization.

25600463513426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12800231756715.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 25600463513426 in words is "twenty-five trillion, six hundred billion, four hundred sixty-three million, five hundred thirteen thousand, four hundred twenty-six".