64560534 has 8 divisors (see below), whose sum is σ = 129121080. Its totient is φ = 21520176.

The previous prime is 64560533. The next prime is 64560539. The reversal of 64560534 is 43506546.

It is a sphenic number, since it is the product of 3 distinct primes.

64560534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 64560495 and 64560504.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5380039 + ... + 5380050.

It is an arithmetic number, because the mean of its divisors is an integer number (16140135).

Almost surely, 2^64560534 is an apocalyptic number.

64560534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64560534 is a wasteful number, since it uses less digits than its factorization.

64560534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760094.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64560534 is about 8034.9570005072. The cubic root of 64560534 is about 401.1643863886.

The spelling of 64560534 in words is "sixty-four million, five hundred sixty thousand, five hundred thirty-four".