564640313 has 16 divisors (see below), whose sum is σ = 587353536. Its totient is φ = 542376000.

The previous prime is 564640303. The next prime is 564640319. The reversal of 564640313 is 313046465.

It is a cyclic number.

It is not a de Polignac number, because 564640313 - 2⁶ = 564640249 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 564640313.

It is not an unprimeable number, because it can be changed into a prime (564640319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513595 + ... + 1513967.

It is an arithmetic number, because the mean of its divisors is an integer number (36709596).

Almost surely, 2^564640313 is an apocalyptic number.

It is an amenable number.

564640313 is a deficient number, since it is larger than the sum of its proper divisors (22713223).

564640313 is a wasteful number, since it uses less digits than its factorization.

564640313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 564640313 is about 23762.1613705488. The cubic root of 564640313 is about 826.5274734388.

Adding to 564640313 its reverse (313046465), we get a palindrome (877686778).

The spelling of 564640313 in words is "five hundred sixty-four million, six hundred forty thousand, three hundred thirteen".