564503155 has 4 divisors (see below), whose sum is σ = 677403792. Its totient is φ = 451602520.

The previous prime is 564503153. The next prime is 564503221. The reversal of 564503155 is 551305465.

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

It is not a de Polignac number, because 564503155 - 2¹ = 564503153 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 564503155.

It is not an unprimeable number, because it can be changed into a prime (564503153) 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, 56450311 + ... + 56450320.

It is an arithmetic number, because the mean of its divisors is an integer number (169350948).

Almost surely, 2^564503155 is an apocalyptic number.

564503155 is a deficient number, since it is larger than the sum of its proper divisors (112900637).

564503155 is a wasteful number, since it uses less digits than its factorization.

564503155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112900636.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 564503155 is about 23759.2751362494. The cubic root of 564503155 is about 826.4605434935.

The spelling of 564503155 in words is "five hundred sixty-four million, five hundred three thousand, one hundred fifty-five".