41533564021 has 2 divisors, whose sum is σ = 41533564022. Its totient is φ = 41533564020.

The previous prime is 41533564001. The next prime is 41533564049. The reversal of 41533564021 is 12046533514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35630715121 + 5902848900 = 188761^2 + 76830^2 .

It is a cyclic number.

It is not a de Polignac number, because 41533564021 - 2¹³ = 41533555829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41533564001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20766782010 + 20766782011.

It is an arithmetic number, because the mean of its divisors is an integer number (20766782011).

Almost surely, 2^41533564021 is an apocalyptic number.

It is an amenable number.

41533564021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41533564021 is an equidigital number, since it uses as much as digits as its factorization.

41533564021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 41533564021 in words is "forty-one billion, five hundred thirty-three million, five hundred sixty-four thousand, twenty-one".