20254045193 has 2 divisors, whose sum is σ = 20254045194. Its totient is φ = 20254045192.

The previous prime is 20254045187. The next prime is 20254045213. The reversal of 20254045193 is 39154045202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16025534464 + 4228510729 = 126592^2 + 65027^2 .

It is a cyclic number.

It is not a de Polignac number, because 20254045193 - 2⁴ = 20254045177 is a prime.

It is not a weakly prime, because it can be changed into another prime (20254045183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10127022596 + 10127022597.

It is an arithmetic number, because the mean of its divisors is an integer number (10127022597).

Almost surely, 2^20254045193 is an apocalyptic number.

It is an amenable number.

20254045193 is a deficient number, since it is larger than the sum of its proper divisors (1).

20254045193 is an equidigital number, since it uses as much as digits as its factorization.

20254045193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20254045193 in words is "twenty billion, two hundred fifty-four million, forty-five thousand, one hundred ninety-three".