566513023 has 4 divisors (see below), whose sum is σ = 591144048. Its totient is φ = 541882000.

The previous prime is 566513009. The next prime is 566513027. The reversal of 566513023 is 320315665.

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-566513023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566513027) 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, 12315478 + ... + 12315523.

It is an arithmetic number, because the mean of its divisors is an integer number (147786012).

Almost surely, 2^566513023 is an apocalyptic number.

566513023 is a deficient number, since it is larger than the sum of its proper divisors (24631025).

566513023 is a wasteful number, since it uses less digits than its factorization.

566513023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24631024.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 566513023 is about 23801.5340471996. The cubic root of 566513023 is about 827.4402304381.

Adding to 566513023 its reverse (320315665), we get a palindrome (886828688).

The spelling of 566513023 in words is "five hundred sixty-six million, five hundred thirteen thousand, twenty-three".