564620648 has 8 divisors (see below), whose sum is σ = 1058663730. Its totient is φ = 282310320.

The previous prime is 564620647. The next prime is 564620681. The reversal of 564620648 is 846026465.

564620648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 564442564 + 178084 = 23758^2 + 422^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×564620648² = 637592952295879808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (564620647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35288783 + ... + 35288798.

Almost surely, 2^564620648 is an apocalyptic number.

It is an amenable number.

564620648 is a deficient number, since it is larger than the sum of its proper divisors (494043082).

564620648 is a wasteful number, since it uses less digits than its factorization.

564620648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70577587 (or 70577583 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 564620648 is about 23761.7475788293. The cubic root of 564620648 is about 826.5178780373.

The spelling of 564620648 in words is "five hundred sixty-four million, six hundred twenty thousand, six hundred forty-eight".