531243535350 has 48 divisors (see below), whose sum is σ = 1437255241920. Its totient is φ = 128786311200.

The previous prime is 531243535297. The next prime is 531243535351. The reversal of 531243535350 is 53535342135.

It is a junction number, because it is equal to n+sod(n) for n = 531243535299 and 531243535308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531243535351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160981240 + ... + 160984539.

It is an arithmetic number, because the mean of its divisors is an integer number (29942817540).

Almost surely, 2^531243535350 is an apocalyptic number.

531243535350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531243535350 is an abundant number, since it is smaller than the sum of its proper divisors (906011706570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531243535350 is a wasteful number, since it uses less digits than its factorization.

531243535350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321965805 (or 321965800 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 39.

Adding to 531243535350 its reverse (53535342135), we get a palindrome (584778877485).

The spelling of 531243535350 in words is "five hundred thirty-one billion, two hundred forty-three million, five hundred thirty-five thousand, three hundred fifty".