564563945 has 16 divisors (see below), whose sum is σ = 759043008. Its totient is φ = 399493440.

The previous prime is 564563927. The next prime is 564563963. The reversal of 564563945 is 549365465.

564563945 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (564563927) and next prime (564563963).

It is a de Polignac number, because none of the positive numbers 2^k-564563945 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564563945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136679 + ... + 140748.

It is an arithmetic number, because the mean of its divisors is an integer number (47440188).

Almost surely, 2^564563945 is an apocalyptic number.

564563945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564563945 is a deficient number, since it is larger than the sum of its proper divisors (194479063).

564563945 is a wasteful number, since it uses less digits than its factorization.

564563945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277480.

The product of its digits is 1944000, while the sum is 47.

The square root of 564563945 is about 23760.5543916803. The cubic root of 564563945 is about 826.4902089511.

The spelling of 564563945 in words is "five hundred sixty-four million, five hundred sixty-three thousand, nine hundred forty-five".