531344050540 has 24 divisors (see below), whose sum is σ = 1126059414480. Its totient is φ = 210587732928.

The previous prime is 531344050537. The next prime is 531344050561. The reversal of 531344050540 is 45050443135.

It is a junction number, because it is equal to n+sod(n) for n = 531344050496 and 531344050505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121865722 + ... + 121870081.

It is an arithmetic number, because the mean of its divisors is an integer number (46919142270).

Almost surely, 2^531344050540 is an apocalyptic number.

It is an amenable number.

531344050540 is an abundant number, since it is smaller than the sum of its proper divisors (594715363940).

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

531344050540 is a wasteful number, since it uses less digits than its factorization.

531344050540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243735921 (or 243735919 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 531344050540 its reverse (45050443135), we get a palindrome (576394493675).

The spelling of 531344050540 in words is "five hundred thirty-one billion, three hundred forty-four million, fifty thousand, five hundred forty".