20245247283256 has 16 divisors (see below), whose sum is σ = 37976109517800. Its totient is φ = 10118284745184.

The previous prime is 20245247283253. The next prime is 20245247283257. The reversal of 20245247283256 is 65238274254202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245247283251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542342226 + ... + 542379553.

Almost surely, 2^{20245247283256} is an apocalyptic number.

It is an amenable number.

20245247283256 is a deficient number, since it is larger than the sum of its proper divisors (17730862234544).

20245247283256 is a wasteful number, since it uses less digits than its factorization.

20245247283256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084724118 (or 1084724114 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 52.

The spelling of 20245247283256 in words is "twenty trillion, two hundred forty-five billion, two hundred forty-seven million, two hundred eighty-three thousand, two hundred fifty-six".