65550243 has 16 divisors (see below), whose sum is σ = 95529600. Its totient is φ = 39650880.

The previous prime is 65550197. The next prime is 65550263. The reversal of 65550243 is 34205556.

It is not a de Polignac number, because 65550243 - 2⁸ = 65549987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65550243.

It is not an unprimeable number, because it can be changed into a prime (65550263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18823 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (5970600).

Almost surely, 2^65550243 is an apocalyptic number.

65550243 is a deficient number, since it is larger than the sum of its proper divisors (29979357).

65550243 is a wasteful number, since it uses less digits than its factorization.

65550243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 65550243 is about 8096.3104560040. The cubic root of 65550243 is about 403.2039412978.

Adding to 65550243 its reverse (34205556), we get a palindrome (99755799).

The spelling of 65550243 in words is "sixty-five million, five hundred fifty thousand, two hundred forty-three".