564855531371 has 4 divisors (see below), whose sum is σ = 598082327352. Its totient is φ = 531628735392.

The previous prime is 564855531293. The next prime is 564855531379. The reversal of 564855531371 is 173135558465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564855531371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564855531379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16613397965 + ... + 16613397998.

It is an arithmetic number, because the mean of its divisors is an integer number (149520581838).

Almost surely, 2^564855531371 is an apocalyptic number.

564855531371 is a deficient number, since it is larger than the sum of its proper divisors (33226795981).

564855531371 is a wasteful number, since it uses less digits than its factorization.

564855531371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33226795980.

The product of its digits is 7560000, while the sum is 53.

The spelling of 564855531371 in words is "five hundred sixty-four billion, eight hundred fifty-five million, five hundred thirty-one thousand, three hundred seventy-one".