64560530 has 32 divisors (see below), whose sum is σ = 118855296. Its totient is φ = 25242624.

The previous prime is 64560521. The next prime is 64560533. The reversal of 64560530 is 3506546.

64560530 is nontrivially palindromic in base 15.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64560493 and 64560502.

It is not an unprimeable number, because it can be changed into a prime (64560533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111602 + ... + 112178.

It is an arithmetic number, because the mean of its divisors is an integer number (3714228).

Almost surely, 2^64560530 is an apocalyptic number.

64560530 is a deficient number, since it is larger than the sum of its proper divisors (54294766).

64560530 is a wasteful number, since it uses less digits than its factorization.

64560530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 64560530 is about 8034.9567515949. The cubic root of 64560530 is about 401.1643781036.

The spelling of 64560530 in words is "sixty-four million, five hundred sixty thousand, five hundred thirty".