65395221 has 8 divisors (see below), whose sum is σ = 87880704. Its totient is φ = 43253280.

The previous prime is 65395219. The next prime is 65395223. The reversal of 65395221 is 12259356.

It is an interprime number because it is at equal distance from previous prime (65395219) and next prime (65395223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65395221 - 2¹ = 65395219 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65395223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85440 + ... + 86201.

It is an arithmetic number, because the mean of its divisors is an integer number (10985088).

Almost surely, 2^65395221 is an apocalyptic number.

It is an amenable number.

65395221 is a deficient number, since it is larger than the sum of its proper divisors (22485483).

65395221 is a wasteful number, since it uses less digits than its factorization.

65395221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171771.

The product of its digits is 16200, while the sum is 33.

The square root of 65395221 is about 8086.7311690200. The cubic root of 65395221 is about 402.8858401633.

The spelling of 65395221 in words is "sixty-five million, three hundred ninety-five thousand, two hundred twenty-one".