65565530 has 16 divisors (see below), whose sum is σ = 119780640. Its totient is φ = 25834512.

The previous prime is 65565529. The next prime is 65565541. The reversal of 65565530 is 3556556.

It is a super-3 number, since 3×65565530³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48260 + ... + 49599.

It is an arithmetic number, because the mean of its divisors is an integer number (7486290).

Almost surely, 2^65565530 is an apocalyptic number.

65565530 is a deficient number, since it is larger than the sum of its proper divisors (54215110).

65565530 is a wasteful number, since it uses less digits than its factorization.

65565530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97933.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 65565530 is about 8097.2544729680. The cubic root of 65565530 is about 403.2352826490.

The spelling of 65565530 in words is "sixty-five million, five hundred sixty-five thousand, five hundred thirty".