523000564531 has 2 divisors, whose sum is σ = 523000564532. Its totient is φ = 523000564530.

The previous prime is 523000564529. The next prime is 523000564577. The reversal of 523000564531 is 135465000325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523000564531 - 2¹ = 523000564529 is a prime.

It is a super-2 number, since 2×523000564531² (a number of 24 digits) contains 22 as substring.

Together with 523000564529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (523000564831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261500282265 + 261500282266.

It is an arithmetic number, because the mean of its divisors is an integer number (261500282266).

Almost surely, 2^523000564531 is an apocalyptic number.

523000564531 is a deficient number, since it is larger than the sum of its proper divisors (1).

523000564531 is an equidigital number, since it uses as much as digits as its factorization.

523000564531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 523000564531 its reverse (135465000325), we get a palindrome (658465564856).

The spelling of 523000564531 in words is "five hundred twenty-three billion, five hundred sixty-four thousand, five hundred thirty-one".