564161513 has 4 divisors (see below), whose sum is σ = 564931908. Its totient is φ = 563391120.

The previous prime is 564161497. The next prime is 564161551. The reversal of 564161513 is 315161465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 345476569 + 218684944 = 18587^2 + 14788^2 .

It is a cyclic number.

It is not a de Polignac number, because 564161513 - 2⁴ = 564161497 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 564161513.

It is not an unprimeable number, because it can be changed into a prime (564161573) 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, 384098 + ... + 385563.

It is an arithmetic number, because the mean of its divisors is an integer number (141232977).

Almost surely, 2^564161513 is an apocalyptic number.

It is an amenable number.

564161513 is a deficient number, since it is larger than the sum of its proper divisors (770395).

564161513 is an equidigital number, since it uses as much as digits as its factorization.

564161513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770394.

The product of its digits is 10800, while the sum is 32.

The square root of 564161513 is about 23752.0843927433. The cubic root of 564161513 is about 826.2937829180.

The spelling of 564161513 in words is "five hundred sixty-four million, one hundred sixty-one thousand, five hundred thirteen".