564646445 has 32 divisors (see below), whose sum is σ = 750366720. Its totient is φ = 404490240.

The previous prime is 564646441. The next prime is 564646447. The reversal of 564646445 is 544646465.

564646445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 564646445 - 2² = 564646441 is a prime.

It is a super-2 number, since 2×564646445² = 637651215702276050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 564646396 and 564646405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564646441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1599389 + ... + 1599741.

It is an arithmetic number, because the mean of its divisors is an integer number (23448960).

Almost surely, 2^564646445 is an apocalyptic number.

564646445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564646445 is a deficient number, since it is larger than the sum of its proper divisors (185720275).

564646445 is a wasteful number, since it uses less digits than its factorization.

564646445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 1382400, while the sum is 44.

The square root of 564646445 is about 23762.2903988652. The cubic root of 564646445 is about 826.5304654604.

The spelling of 564646445 in words is "five hundred sixty-four million, six hundred forty-six thousand, four hundred forty-five".