20245247283253 has 2 divisors, whose sum is σ = 20245247283254. Its totient is φ = 20245247283252.

The previous prime is 20245247283251. The next prime is 20245247283257. The reversal of 20245247283253 is 35238274254202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13470382720804 + 6774864562449 = 3670202^2 + 2602857^2 .

It is a cyclic number.

It is not a de Polignac number, because 20245247283253 - 2¹ = 20245247283251 is a prime.

Together with 20245247283251, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20245247283197 and 20245247283206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20245247283251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122623641626 + 10122623641627.

It is an arithmetic number, because the mean of its divisors is an integer number (10122623641627).

Almost surely, 2^{20245247283253} is an apocalyptic number.

It is an amenable number.

20245247283253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20245247283253 is an equidigital number, since it uses as much as digits as its factorization.

20245247283253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 49.

The spelling of 20245247283253 in words is "twenty trillion, two hundred forty-five billion, two hundred forty-seven million, two hundred eighty-three thousand, two hundred fifty-three".