41522021 has 2 divisors, whose sum is σ = 41522022. Its totient is φ = 41522020.

The previous prime is 41522003. The next prime is 41522071. The reversal of 41522021 is 12022514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31192225 + 10329796 = 5585^2 + 3214^2 .

It is a cyclic number.

It is not a de Polignac number, because 41522021 - 2⁶ = 41521957 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_2520503 and since 41522021 and 2520503 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41522071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20761010 + 20761011.

It is an arithmetic number, because the mean of its divisors is an integer number (20761011).

Almost surely, 2^41522021 is an apocalyptic number.

It is an amenable number.

41522021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41522021 is an equidigital number, since it uses as much as digits as its factorization.

41522021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 41522021 is about 6443.7582977638. The cubic root of 41522021 is about 346.2790052465.

Adding to 41522021 its reverse (12022514), we get a palindrome (53544535).

The spelling of 41522021 in words is "forty-one million, five hundred twenty-two thousand, twenty-one".