41550337921 has 9 divisors (see below), whose sum is σ = 42462988099. Its totient is φ = 40656911584.

The previous prime is 41550337909. The next prime is 41550337931. The reversal of 41550337921 is 12973305514.

The square root of 41550337921 is 203839.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 477641025 + 41072696896 = 21855^2 + 202664^2 .

It is not a de Polignac number, because 41550337921 - 2¹⁹ = 41549813633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41550337931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9578265 + ... + 9582601.

Almost surely, 2^41550337921 is an apocalyptic number.

41550337921 is the 203839-th square number.

41550337921 is the 101920-th centered octagonal number.

It is an amenable number.

41550337921 is a deficient number, since it is larger than the sum of its proper divisors (912650178).

41550337921 is an frugal number, since it uses more digits than its factorization.

41550337921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 41550337921 in words is "forty-one billion, five hundred fifty million, three hundred thirty-seven thousand, nine hundred twenty-one".