65226609 has 12 divisors (see below), whose sum is σ = 107675776. Its totient is φ = 37272312.

The previous prime is 65226607. The next prime is 65226619. The reversal of 65226609 is 90662256.

It is not a de Polignac number, because 65226609 - 2¹ = 65226607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65226607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517609 + ... + 517734.

Almost surely, 2^65226609 is an apocalyptic number.

It is an amenable number.

65226609 is a deficient number, since it is larger than the sum of its proper divisors (42449167).

65226609 is a wasteful number, since it uses less digits than its factorization.

65226609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035356 (or 1035353 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 65226609 is about 8076.2992143679. The cubic root of 65226609 is about 402.5392814305.

It can be divided in two parts, 6522 and 6609, that added together give a palindrome (13131).

The spelling of 65226609 in words is "sixty-five million, two hundred twenty-six thousand, six hundred nine".