52143210631 has 16 divisors (see below), whose sum is σ = 53955865600. Its totient is φ = 50353138080.

The previous prime is 52143210617. The next prime is 52143210659. The reversal of 52143210631 is 13601234125.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52143210631 is a prime.

It is a super-2 number, since 2×52143210631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52143210631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52143210601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2856070 + ... + 2874268.

It is an arithmetic number, because the mean of its divisors is an integer number (3372241600).

Almost surely, 2^52143210631 is an apocalyptic number.

52143210631 is a deficient number, since it is larger than the sum of its proper divisors (1812654969).

52143210631 is a wasteful number, since it uses less digits than its factorization.

52143210631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18814.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 52143210631 its reverse (13601234125), we get a palindrome (65744444756).

The spelling of 52143210631 in words is "fifty-two billion, one hundred forty-three million, two hundred ten thousand, six hundred thirty-one".