65551033 has 2 divisors, whose sum is σ = 65551034. Its totient is φ = 65551032.

The previous prime is 65550977. The next prime is 65551039. The reversal of 65551033 is 33015556.

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., 64689849 + 861184 = 8043^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 65551033 - 2²¹ = 63453881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65550992 and 65551010.

It is not a weakly prime, because it can be changed into another prime (65551039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32775516 + 32775517.

It is an arithmetic number, because the mean of its divisors is an integer number (32775517).

Almost surely, 2^65551033 is an apocalyptic number.

It is an amenable number.

65551033 is a deficient number, since it is larger than the sum of its proper divisors (1).

65551033 is an equidigital number, since it uses as much as digits as its factorization.

65551033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 65551033 is about 8096.3592435119. The cubic root of 65551033 is about 403.2055610723.

Adding to 65551033 its reverse (33015556), we get a palindrome (98566589).

The spelling of 65551033 in words is "sixty-five million, five hundred fifty-one thousand, thirty-three".