65613305 has 8 divisors (see below), whose sum is σ = 78926400. Its totient is φ = 52363696.

The previous prime is 65613299. The next prime is 65613307. The reversal of 65613305 is 50331656.

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 65613305 - 2⁶ = 65613241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65613307) 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 in 7 ways as a sum of consecutive naturals, for example, 13565 + ... + 17754.

It is an arithmetic number, because the mean of its divisors is an integer number (9865800).

Almost surely, 2^65613305 is an apocalyptic number.

It is an amenable number.

65613305 is a deficient number, since it is larger than the sum of its proper divisors (13313095).

65613305 is a wasteful number, since it uses less digits than its factorization.

65613305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31743.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 65613305 is about 8100.2040097765. The cubic root of 65613305 is about 403.3331993868. Note that the first 3 decimals are identical.

The spelling of 65613305 in words is "sixty-five million, six hundred thirteen thousand, three hundred five".