20535450541 has 2 divisors, whose sum is σ = 20535450542. Its totient is φ = 20535450540.

The previous prime is 20535450521. The next prime is 20535450587. The reversal of 20535450541 is 14505453502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19456065225 + 1079385316 = 139485^2 + 32854^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535450541 - 2⁷ = 20535450413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20535450497 and 20535450506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20535450521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267725270 + 10267725271.

It is an arithmetic number, because the mean of its divisors is an integer number (10267725271).

Almost surely, 2^20535450541 is an apocalyptic number.

It is an amenable number.

20535450541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535450541 is an equidigital number, since it uses as much as digits as its factorization.

20535450541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 20535450541 in words is "twenty billion, five hundred thirty-five million, four hundred fifty thousand, five hundred forty-one".