65135533 has 2 divisors, whose sum is σ = 65135534. Its totient is φ = 65135532.

The previous prime is 65135507. The next prime is 65135549. The reversal of 65135533 is 33553156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41447844 + 23687689 = 6438^2 + 4867^2 .

It is a cyclic number.

It is not a de Polignac number, because 65135533 - 2¹³ = 65127341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65135495 and 65135504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65132533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32567766 + 32567767.

It is an arithmetic number, because the mean of its divisors is an integer number (32567767).

Almost surely, 2^65135533 is an apocalyptic number.

It is an amenable number.

65135533 is a deficient number, since it is larger than the sum of its proper divisors (1).

65135533 is an equidigital number, since it uses as much as digits as its factorization.

65135533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250, while the sum is 31.

The square root of 65135533 is about 8070.6587711289. The cubic root of 65135533 is about 402.3518387851.

Adding to 65135533 its reverse (33553156), we get a palindrome (98688689).

The spelling of 65135533 in words is "sixty-five million, one hundred thirty-five thousand, five hundred thirty-three".