564645215 has 4 divisors (see below), whose sum is σ = 677574264. Its totient is φ = 451716168.

The previous prime is 564645209. The next prime is 564645227. The reversal of 564645215 is 512546465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512546465 = 5 ⋅102509293.

It is a cyclic number.

It is not a de Polignac number, because 564645215 - 2⁸ = 564644959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56464517 + ... + 56464526.

It is an arithmetic number, because the mean of its divisors is an integer number (169393566).

Almost surely, 2^564645215 is an apocalyptic number.

564645215 is a deficient number, since it is larger than the sum of its proper divisors (112929049).

564645215 is a wasteful number, since it uses less digits than its factorization.

564645215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112929048.

The product of its digits is 144000, while the sum is 38.

The square root of 564645215 is about 23762.2645175076. The cubic root of 564645215 is about 826.5298653012.

The spelling of 564645215 in words is "five hundred sixty-four million, six hundred forty-five thousand, two hundred fifteen".