564551143 has 32 divisors (see below), whose sum is σ = 643507200. Its totient is φ = 491826816.

The previous prime is 564551111. The next prime is 564551173. The reversal of 564551143 is 341155465.

It is not a de Polignac number, because 564551143 - 2⁵ = 564551111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564551099 and 564551108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564551173) 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 31 ways as a sum of consecutive naturals, for example, 3153828 + ... + 3154006.

It is an arithmetic number, because the mean of its divisors is an integer number (20109600).

Almost surely, 2^564551143 is an apocalyptic number.

564551143 is a deficient number, since it is larger than the sum of its proper divisors (78956057).

564551143 is a wasteful number, since it uses less digits than its factorization.

564551143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its digits is 36000, while the sum is 34.

The square root of 564551143 is about 23760.2849940820. The cubic root of 564551143 is about 826.4839617652.

The spelling of 564551143 in words is "five hundred sixty-four million, five hundred fifty-one thousand, one hundred forty-three".