65952213 has 8 divisors (see below), whose sum is σ = 88092576. Its totient is φ = 43890000.

The previous prime is 65952209. The next prime is 65952253. The reversal of 65952213 is 31225956.

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

It is not a de Polignac number, because 65952213 - 2² = 65952209 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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65952203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17538 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (11011572).

Almost surely, 2^65952213 is an apocalyptic number.

It is an amenable number.

65952213 is a deficient number, since it is larger than the sum of its proper divisors (22140363).

65952213 is a wasteful number, since it uses less digits than its factorization.

65952213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39075.

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

The square root of 65952213 is about 8121.0967855333. The cubic root of 65952213 is about 404.0264437973.

The spelling of 65952213 in words is "sixty-five million, nine hundred fifty-two thousand, two hundred thirteen".