65551039 has 2 divisors, whose sum is σ = 65551040. Its totient is φ = 65551038.

The previous prime is 65551033. The next prime is 65551043. The reversal of 65551039 is 93015556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65551039 - 2²⁵ = 31996607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65550995 and 65551013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65551033) 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 as a sum of consecutive naturals, namely, 32775519 + 32775520.

It is an arithmetic number, because the mean of its divisors is an integer number (32775520).

Almost surely, 2^65551039 is an apocalyptic number.

65551039 is a deficient number, since it is larger than the sum of its proper divisors (1).

65551039 is an equidigital number, since it uses as much as digits as its factorization.

65551039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 65551039 is about 8096.3596140488. The cubic root of 65551039 is about 403.2055733744.

The spelling of 65551039 in words is "sixty-five million, five hundred fifty-one thousand, thirty-nine".