65530560 has 56 divisors (see below), whose sum is σ = 208062576. Its totient is φ = 17474560.

The previous prime is 65530541. The next prime is 65530561. The reversal of 65530560 is 6503556.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (65530561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33171 + ... + 35090.

Almost surely, 2^65530560 is an apocalyptic number.

65530560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65530560 is an abundant number, since it is smaller than the sum of its proper divisors (142532016).

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

65530560 is a wasteful number, since it uses less digits than its factorization.

65530560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68281 (or 68271 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 65530560 is about 8095.0948110569. The cubic root of 65530560 is about 403.1635801067.

The spelling of 65530560 in words is "sixty-five million, five hundred thirty thousand, five hundred sixty".