65533273 has 8 divisors (see below), whose sum is σ = 70653128. Its totient is φ = 60424704.

The previous prime is 65533229. The next prime is 65533277. The reversal of 65533273 is 37233556.

It can be written as a sum of positive squares in 4 ways, for example, as 13520329 + 52012944 = 3677^2 + 7212^2 .

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 65533273 - 2¹³ = 65525081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65533277) 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, 12265 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (8831641).

Almost surely, 2^65533273 is an apocalyptic number.

It is an amenable number.

65533273 is a deficient number, since it is larger than the sum of its proper divisors (5119855).

65533273 is a wasteful number, since it uses less digits than its factorization.

65533273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643.

The product of its digits is 56700, while the sum is 34.

The square root of 65533273 is about 8095.2623799356. The cubic root of 65533273 is about 403.1691437587.

The spelling of 65533273 in words is "sixty-five million, five hundred thirty-three thousand, two hundred seventy-three".