25256359136422 has 4 divisors (see below), whose sum is σ = 37884538704636. Its totient is φ = 12628179568210.

The previous prime is 25256359136419. The next prime is 25256359136453. The reversal of 25256359136422 is 22463195365252.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314089784104 + ... + 6314089784107.

It is an arithmetic number, because the mean of its divisors is an integer number (9471134676159).

Almost surely, 2^{25256359136422} is an apocalyptic number.

25256359136422 is a deficient number, since it is larger than the sum of its proper divisors (12628179568214).

25256359136422 is a wasteful number, since it uses less digits than its factorization.

25256359136422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12628179568213.

The product of its digits is 23328000, while the sum is 55.

The spelling of 25256359136422 in words is "twenty-five trillion, two hundred fifty-six billion, three hundred fifty-nine million, one hundred thirty-six thousand, four hundred twenty-two".