531053536663 has 32 divisors (see below), whose sum is σ = 592931494400. Its totient is φ = 472574424960.

The previous prime is 531053536589. The next prime is 531053536691. The reversal of 531053536663 is 366635350135.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531053536663 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 (531053539663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10547956 + ... + 10598182.

It is an arithmetic number, because the mean of its divisors is an integer number (18529109200).

Almost surely, 2^531053536663 is an apocalyptic number.

531053536663 is a deficient number, since it is larger than the sum of its proper divisors (61877957737).

531053536663 is a wasteful number, since it uses less digits than its factorization.

531053536663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50567.

The product of its (nonzero) digits is 2187000, while the sum is 46.

Adding to 531053536663 its reverse (366635350135), we get a palindrome (897688886798).

The spelling of 531053536663 in words is "five hundred thirty-one billion, fifty-three million, five hundred thirty-six thousand, six hundred sixty-three".