564515020 has 24 divisors (see below), whose sum is σ = 1186000704. Its totient is φ = 225707136.

The previous prime is 564514997. The next prime is 564515047. The reversal of 564515020 is 20515465.

It is a self number, because there is not a number n which added to its sum of digits gives 564515020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55792 + ... + 65128.

It is an arithmetic number, because the mean of its divisors is an integer number (49416696).

Almost surely, 2^564515020 is an apocalyptic number.

It is an amenable number.

564515020 is an abundant number, since it is smaller than the sum of its proper divisors (621485684).

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

564515020 is a wasteful number, since it uses less digits than its factorization.

564515020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369 (or 12367 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 564515020 is about 23759.5248268984. The cubic root of 564515020 is about 826.4663337686.

The spelling of 564515020 in words is "five hundred sixty-four million, five hundred fifteen thousand, twenty".