65030550505 has 4 divisors (see below), whose sum is σ = 78036660612. Its totient is φ = 52024440400.

The previous prime is 65030550491. The next prime is 65030550521. The reversal of 65030550505 is 50505503056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11680637929 + 53349912576 = 108077^2 + 230976^2 .

It is not a de Polignac number, because 65030550505 - 2²¹ = 65028453353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503055046 + ... + 6503055055.

It is an arithmetic number, because the mean of its divisors is an integer number (19509165153).

Almost surely, 2^65030550505 is an apocalyptic number.

It is an amenable number.

65030550505 is a deficient number, since it is larger than the sum of its proper divisors (13006110107).

65030550505 is a wasteful number, since it uses less digits than its factorization.

65030550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13006110106.

The product of its (nonzero) digits is 56250, while the sum is 34.

The spelling of 65030550505 in words is "sixty-five billion, thirty million, five hundred fifty thousand, five hundred five".