431233105564550 has 24 divisors (see below), whose sum is σ = 802123129534896. Its totient is φ = 172486886702240.

The previous prime is 431233105564549. The next prime is 431233105564553. The reversal of 431233105564550 is 55465501332134.

It is a junction number, because it is equal to n+sod(n) for n = 431233105564495 and 431233105564504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431233105564553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157517369 + ... + 160231668.

It is an arithmetic number, because the mean of its divisors is an integer number (33421797063954).

Almost surely, 2^{431233105564550} is an apocalyptic number.

431233105564550 is a deficient number, since it is larger than the sum of its proper divisors (370890023970346).

431233105564550 is a wasteful number, since it uses less digits than its factorization.

431233105564550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317776192 (or 317776187 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 47.

Adding to 431233105564550 its reverse (55465501332134), we get a palindrome (486698606896684).

The spelling of 431233105564550 in words is "four hundred thirty-one trillion, two hundred thirty-three billion, one hundred five million, five hundred sixty-four thousand, five hundred fifty".