65553560 has 32 divisors (see below), whose sum is σ = 148811040. Its totient is φ = 25987584.

The previous prime is 65553533. The next prime is 65553571. The reversal of 65553560 is 6535556.

It is a self number, because there is not a number n which added to its sum of digits gives 65553560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (4650345).

Almost surely, 2^65553560 is an apocalyptic number.

It is an amenable number.

65553560 is an abundant number, since it is smaller than the sum of its proper divisors (83257480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65553560 is a wasteful number, since it uses less digits than its factorization.

65553560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14627 (or 14623 counting only the distinct ones).

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

The square root of 65553560 is about 8096.5152998065. The cubic root of 65553560 is about 403.2107422130.

The spelling of 65553560 in words is "sixty-five million, five hundred fifty-three thousand, five hundred sixty".