65953133 has 8 divisors (see below), whose sum is σ = 67681656. Its totient is φ = 64230400.

The previous prime is 65953109. The next prime is 65953171. The reversal of 65953133 is 33135956.

It can be written as a sum of positive squares in 4 ways, for example, as 3020644 + 62932489 = 1738^2 + 7933^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65953133 - 2²⁰ = 64904557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65953093 and 65953102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65953193) 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, 30653 + ... + 32733.

It is an arithmetic number, because the mean of its divisors is an integer number (8460207).

Almost surely, 2^65953133 is an apocalyptic number.

It is an amenable number.

65953133 is a deficient number, since it is larger than the sum of its proper divisors (1728523).

65953133 is a wasteful number, since it uses less digits than its factorization.

65953133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its digits is 36450, while the sum is 35.

The square root of 65953133 is about 8121.1534279313. The cubic root of 65953133 is about 404.0283224434.

The spelling of 65953133 in words is "sixty-five million, nine hundred fifty-three thousand, one hundred thirty-three".