65221060 has 24 divisors (see below), whose sum is σ = 137140416. Its totient is φ = 26054880.

The previous prime is 65221049. The next prime is 65221063. The reversal of 65221060 is 6012256.

65221060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65221063) 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 7 ways as a sum of consecutive naturals, for example, 19039 + ... + 22201.

It is an arithmetic number, because the mean of its divisors is an integer number (5714184).

Almost surely, 2^65221060 is an apocalyptic number.

It is an amenable number.

65221060 is an abundant number, since it is smaller than the sum of its proper divisors (71919356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65221060 is a wasteful number, since it uses less digits than its factorization.

65221060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 65221060 is about 8075.9556710027. The cubic root of 65221060 is about 402.5278660799.

It can be divided in two parts, 652 and 21060, that added together give a palindrome (21712).

The spelling of 65221060 in words is "sixty-five million, two hundred twenty-one thousand, sixty".