41025287209 has 9 divisors (see below), whose sum is σ = 41744576343. Its totient is φ = 40318195632.

The previous prime is 41025287153. The next prime is 41025287231. The reversal of 41025287209 is 90278252014.

The square root of 41025287209 is 202547.

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., 13578075625 + 27447211584 = 116525^2 + 165672^2 .

It is not a de Polignac number, because 41025287209 - 2⁹ = 41025286697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41025287249) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11948557 + ... + 11951989.

Almost surely, 2^41025287209 is an apocalyptic number.

41025287209 is the 202547-th square number.

41025287209 is the 101274-th centered octagonal number.

It is an amenable number.

41025287209 is a deficient number, since it is larger than the sum of its proper divisors (719289134).

41025287209 is an frugal number, since it uses more digits than its factorization.

41025287209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6984 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 41025287209 in words is "forty-one billion, twenty-five million, two hundred eighty-seven thousand, two hundred nine".