65215241 has 12 divisors (see below), whose sum is σ = 80707392. Its totient is φ = 51597936.

The previous prime is 65215217. The next prime is 65215243. The reversal of 65215241 is 14251256.

65215241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65215241 - 2⁶ = 65215177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65215241.

It is not an unprimeable number, because it can be changed into a prime (65215243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26381 + ... + 28746.

It is an arithmetic number, because the mean of its divisors is an integer number (6725616).

Almost surely, 2^65215241 is an apocalyptic number.

It is an amenable number.

65215241 is a deficient number, since it is larger than the sum of its proper divisors (15492151).

65215241 is a wasteful number, since it uses less digits than its factorization.

65215241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55160 (or 55147 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 65215241 is about 8075.5953960064. The cubic root of 65215241 is about 402.5158945924.

Adding to 65215241 its reverse (14251256), we get a palindrome (79466497).

It can be divided in two parts, 65215 and 241, that added together give a palindrome (65456).

The spelling of 65215241 in words is "sixty-five million, two hundred fifteen thousand, two hundred forty-one".