564541648 has 20 divisors (see below), whose sum is σ = 1193236128. Its totient is φ = 256609760.

The previous prime is 564541643. The next prime is 564541657. The reversal of 564541648 is 846145465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564541643) 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, 1603636 + ... + 1603987.

Almost surely, 2^564541648 is an apocalyptic number.

It is an amenable number.

564541648 is an abundant number, since it is smaller than the sum of its proper divisors (628694480).

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

564541648 is a wasteful number, since it uses less digits than its factorization.

564541648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207642 (or 3207636 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 564541648 is about 23760.0851850325. The cubic root of 564541648 is about 826.4793282853.

The spelling of 564541648 in words is "five hundred sixty-four million, five hundred forty-one thousand, six hundred forty-eight".