20045250541 has 2 divisors, whose sum is σ = 20045250542. Its totient is φ = 20045250540.

The previous prime is 20045250521. The next prime is 20045250551. The reversal of 20045250541 is 14505254002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15862394916 + 4182855625 = 125946^2 + 64675^2 .

It is a cyclic number.

It is not a de Polignac number, because 20045250541 - 2¹¹ = 20045248493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20045250521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022625270 + 10022625271.

It is an arithmetic number, because the mean of its divisors is an integer number (10022625271).

Almost surely, 2^20045250541 is an apocalyptic number.

It is an amenable number.

20045250541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045250541 is an equidigital number, since it uses as much as digits as its factorization.

20045250541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 20045250541 in words is "twenty billion, forty-five million, two hundred fifty thousand, five hundred forty-one".