564529109 has 4 divisors (see below), whose sum is σ = 583995660. Its totient is φ = 545062560.

The previous prime is 564529103. The next prime is 564529177. The reversal of 564529109 is 901925465.

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 93508900 + 471020209 = 9670^2 + 21703^2 .

It is a cyclic number.

It is not a de Polignac number, because 564529109 - 2¹⁶ = 564463573 is a prime.

It is a super-2 number, since 2×564529109² = 637386229816667762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564529103) 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, 9733232 + ... + 9733289.

It is an arithmetic number, because the mean of its divisors is an integer number (145998915).

Almost surely, 2^564529109 is an apocalyptic number.

It is an amenable number.

564529109 is a deficient number, since it is larger than the sum of its proper divisors (19466551).

564529109 is a wasteful number, since it uses less digits than its factorization.

564529109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19466550.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 564529109 is about 23759.8213166682. The cubic root of 564529109 is about 826.4732092794.

The spelling of 564529109 in words is "five hundred sixty-four million, five hundred twenty-nine thousand, one hundred nine".