64560043 has 4 divisors (see below), whose sum is σ = 67957960. Its totient is φ = 61162128.

The previous prime is 64560037. The next prime is 64560053. The reversal of 64560043 is 34006546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64560043 - 2⁹ = 64559531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64559993 and 64560020.

It is not an unprimeable number, because it can be changed into a prime (64560053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698930 + ... + 1698967.

It is an arithmetic number, because the mean of its divisors is an integer number (16989490).

Almost surely, 2^64560043 is an apocalyptic number.

64560043 is a deficient number, since it is larger than the sum of its proper divisors (3397917).

64560043 is a wasteful number, since it uses less digits than its factorization.

64560043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397916.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 64560043 is about 8034.9264464586. The cubic root of 64560043 is about 401.1633693988.

Adding to 64560043 its reverse (34006546), we get a palindrome (98566589).

The spelling of 64560043 in words is "sixty-four million, five hundred sixty thousand, forty-three".