522511401023 has 4 divisors (see below), whose sum is σ = 545229288048. Its totient is φ = 499793514000.

The previous prime is 522511400981. The next prime is 522511401043. The reversal of 522511401023 is 320104115225.

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

It is a cyclic number.

It is not a de Polignac number, because 522511401023 - 2⁶ = 522511400959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522511400983 and 522511401001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522511401043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11358943478 + ... + 11358943523.

It is an arithmetic number, because the mean of its divisors is an integer number (136307322012).

Almost surely, 2^522511401023 is an apocalyptic number.

522511401023 is a deficient number, since it is larger than the sum of its proper divisors (22717887025).

522511401023 is a wasteful number, since it uses less digits than its factorization.

522511401023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22717887024.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 522511401023 its reverse (320104115225), we get a palindrome (842615516248).

The spelling of 522511401023 in words is "five hundred twenty-two billion, five hundred eleven million, four hundred one thousand, twenty-three".